WEBVTT 00:05.100 --> 00:07.733 align:left position:47.5% line:5% size:42.5% ♪♪ 00:07.733 --> 00:10.533 align:left position:40% line:83% size:50% NARRATOR: Hidden in the heart of Africa 00:10.533 --> 00:12.800 align:left position:22.5% line:89% size:67.5% lies a place of wonder. 00:12.800 --> 00:16.633 align:left position:47.5% line:5% size:42.5% ♪♪ 00:16.633 --> 00:19.700 align:left position:22.5% line:89% size:67.5% This bountiful terrain 00:19.700 --> 00:23.833 align:left position:32.5% line:83% size:57.5% draws migrants in their thousands. 00:23.833 --> 00:26.866 align:left position:25% line:83% size:65% But not all can make such journeys, 00:26.866 --> 00:29.866 align:left position:22.5% line:89% size:67.5% and so this rugged land 00:29.866 --> 00:32.966 align:left position:25% line:83% size:65% is the permanent home of three tribes. 00:32.966 --> 00:33.900 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 00:33.900 --> 00:35.866 align:left position:40% line:89% size:50% Hippos... 00:35.866 --> 00:37.900 align:left position:35% line:89% size:55% crocodiles... 00:39.100 --> 00:41.800 align:left position:35% line:89% size:55% ...and lions. 00:41.800 --> 00:44.800 align:left position:20% line:89% size:70% Each wary of the other... 00:44.800 --> 00:45.900 align:left position:25% line:89% size:65% [ Crocodile hisses ] 00:45.900 --> 00:48.633 align:left position:22.5% line:83% size:67.5% ...their stories unfold in parallel. 00:48.633 --> 00:49.766 align:left position:27.5% line:89% size:62.5% [ Thunder rumbles ] 00:49.766 --> 00:52.400 align:left position:22.5% line:83% size:67.5% They live in harmony -- more or less -- 00:54.966 --> 01:00.733 align:left position:15% line:83% size:75% until a fierce climatic cycle turns their world upside down. 01:00.733 --> 01:05.133 align:left position:47.5% line:5% size:42.5% ♪♪ 01:05.133 --> 01:08.133 align:left position:27.5% line:89% size:62.5% Relentless drought 01:08.133 --> 01:10.666 align:left position:12.5% line:89% size:77.5% turn tussles over territory... 01:10.666 --> 01:12.100 align:left position:25% line:89% size:65% [ Elephant grunting ] 01:12.100 --> 01:14.733 align:left position:15% line:89% size:75% ...into battles for survival. 01:14.733 --> 01:15.933 align:left position:27.5% line:89% size:62.5% [ Thunder crashes ] 01:15.933 --> 01:19.400 align:left position:12.5% line:89% size:77.5% What should be life-giving rain 01:19.400 --> 01:23.066 align:left position:32.5% line:83% size:57.5% delivers floods of biblical proportion. 01:23.066 --> 01:27.333 align:left position:20% line:83% size:70% These age-old floodplains are no longer ruled 01:27.333 --> 01:28.966 align:left position:25% line:89% size:65% by vagabond lions... 01:28.966 --> 01:31.133 align:left position:32.5% line:89% size:57.5% [ Lion growls ] 01:32.333 --> 01:35.633 align:left position:17.5% line:89% size:72.5% ...but by a greater power. 01:35.633 --> 01:39.966 align:left position:32.5% line:89% size:57.5% This is Katavi. 01:39.966 --> 01:49.966 align:left position:47.5% line:5% size:42.5% ♪♪ 01:49.966 --> 01:59.433 align:left position:47.5% line:5% size:42.5% ♪♪ 02:17.900 --> 02:19.900 align:left position:40% line:83% size:50% NARRATOR: At the heart of Africa's 02:19.900 --> 02:23.266 align:left position:30% line:83% size:60% Great Rift Valley in western Tanzania 02:23.266 --> 02:28.300 align:left position:12.5% line:83% size:77.5% lies an ancient ribbon of land, remote and inaccessible. 02:31.400 --> 02:37.000 align:left position:15% line:83% size:75% Katavi is almost 2,000 square miles of unspoiled wilderness. 02:37.000 --> 02:47.000 align:left position:47.5% line:5% size:42.5% ♪♪ 02:47.000 --> 02:50.333 align:left position:47.5% line:5% size:42.5% ♪♪ 02:50.333 --> 02:56.666 align:left position:12.5% line:83% size:77.5% The black wings of open-billed storks fill Katavi's skies. 02:56.666 --> 02:59.233 align:left position:25% line:83% size:65% The low water levels for this time of year 02:59.233 --> 03:04.366 align:left position:12.5% line:89% size:77.5% draw them here unusually early 03:04.366 --> 03:08.700 align:left position:15% line:89% size:75% and in unprecedented numbers. 03:08.700 --> 03:10.366 align:left position:32.5% line:89% size:57.5% A sign of rare, 03:10.366 --> 03:14.466 align:left position:17.5% line:83% size:72.5% once-in-a-lifetime climate phenomenon gripping the land. 03:14.466 --> 03:17.000 align:left position:25% line:89% size:65% [ Storks chittering ] 03:17.000 --> 03:18.466 align:left position:27.5% line:89% size:62.5% [ Lioness growls ] 03:18.466 --> 03:21.400 align:left position:40% line:83% size:50% And under this foreshadow of disaster, 03:21.400 --> 03:25.933 align:left position:22.5% line:89% size:67.5% new life is beginning. 03:25.933 --> 03:29.400 align:left position:10% line:89% size:80% A young lioness has given birth. 03:29.400 --> 03:32.733 align:left position:35% line:83% size:55% She is Mwezi, a member of the pride 03:32.733 --> 03:35.666 align:left position:17.5% line:83% size:72.5% that lives along the banks of the Katuma River. 03:35.666 --> 03:42.766 align:left position:47.5% line:5% size:42.5% ♪♪ 03:42.766 --> 03:45.133 align:left position:20% line:89% size:70% This is her first litter. 03:45.133 --> 03:47.766 align:left position:30% line:89% size:60% [ Cubs mewling ] 03:47.766 --> 03:51.933 align:left position:22.5% line:83% size:67.5% Four healthy lion cubs, just a few hours old 03:51.933 --> 03:54.600 align:left position:22.5% line:83% size:67.5% and only just beginning to open their eyes. 03:54.600 --> 04:03.200 align:left position:47.5% line:5% size:42.5% ♪♪ 04:03.200 --> 04:06.400 align:left position:35% line:83% size:55% A month ago, she separated from the pride 04:06.400 --> 04:10.200 align:left position:17.5% line:83% size:72.5% to find a secluded place to bring her cubs into the world. 04:13.066 --> 04:16.033 align:left position:20% line:83% size:70% But it will soon be time to introduce these little ones 04:16.033 --> 04:18.366 align:left position:17.5% line:89% size:72.5% to the rest of the family. 04:18.366 --> 04:23.866 align:left position:47.5% line:5% size:42.5% ♪♪ 04:23.866 --> 04:26.433 align:left position:20% line:89% size:70% Motherhood is exhausting. 04:26.433 --> 04:28.666 align:left position:47.5% line:5% size:42.5% ♪♪ 04:28.666 --> 04:30.500 align:left position:22.5% line:89% size:67.5% As her cubs get bigger, 04:30.500 --> 04:35.866 align:left position:22.5% line:83% size:67.5% she'll need the support of her own mother and aunts. 04:35.866 --> 04:40.966 align:left position:27.5% line:83% size:62.5% And the protection of their father, Arthur. 04:40.966 --> 04:43.933 align:left position:47.5% line:5% size:42.5% ♪♪ 04:43.933 --> 04:45.333 align:left position:32.5% line:89% size:57.5% But weeks ago, 04:45.333 --> 04:50.433 align:left position:17.5% line:83% size:72.5% Arthur followed the buffalo herds into the forest 04:50.433 --> 04:52.566 align:left position:17.5% line:89% size:72.5% and has still not returned. 04:52.566 --> 05:02.633 align:left position:47.5% line:5% size:42.5% ♪♪ 05:02.633 --> 05:09.766 align:left position:47.5% line:5% size:42.5% ♪♪ 05:09.766 --> 05:12.366 align:left position:30% line:83% size:60% Unbeknown to this first-time mother, 05:12.366 --> 05:14.500 align:left position:17.5% line:89% size:72.5% he was wounded in battle... 05:14.500 --> 05:16.600 align:left position:32.5% line:89% size:57.5% [ Lion growls ] 05:18.766 --> 05:20.633 align:left position:12.5% line:89% size:77.5% [ Lion growls, buffalo grunts ] 05:28.333 --> 05:29.866 align:left position:32.5% line:89% size:57.5% [ Lion roars ] 05:37.166 --> 05:41.833 align:left position:32.5% line:83% size:57.5% ...immobilized and left for dead. 05:41.833 --> 05:49.166 align:left position:47.5% line:5% size:42.5% ♪♪ 05:49.166 --> 05:53.233 align:left position:20% line:83% size:70% Their cubs have been born at a precarious moment in time. 05:53.233 --> 06:01.733 align:left position:47.5% line:5% size:42.5% ♪♪ 06:01.733 --> 06:07.133 align:left position:22.5% line:83% size:67.5% For this time of year, rainfall is extremely low. 06:07.133 --> 06:10.233 align:left position:35% line:83% size:55% Less grazing means prey is scarce 06:10.233 --> 06:13.066 align:left position:20% line:83% size:70% in what would usually be a time of plenty. 06:15.800 --> 06:18.100 align:left position:12.5% line:89% size:77.5% But for the open-billed storks, 06:18.100 --> 06:20.933 align:left position:17.5% line:83% size:72.5% the shallow river provides a feeding opportunity 06:20.933 --> 06:22.800 align:left position:30% line:89% size:60% not to be missed. 06:22.800 --> 06:31.900 align:left position:47.5% line:5% size:42.5% ♪♪ 06:31.900 --> 06:35.433 align:left position:20% line:83% size:70% Their early arrival warns of an extreme drought. 06:35.433 --> 06:45.433 align:left position:47.5% line:5% size:42.5% ♪♪ 06:45.433 --> 06:48.933 align:left position:47.5% line:5% size:42.5% ♪♪ 06:48.933 --> 06:50.566 align:left position:27.5% line:89% size:62.5% [ Lioness mewling ] 06:50.566 --> 06:56.700 align:left position:47.5% line:5% size:42.5% ♪♪ 06:56.700 --> 07:03.600 align:left position:12.5% line:83% size:77.5% Mwezi's calls for her family's support go unanswered. 07:03.600 --> 07:07.766 align:left position:27.5% line:89% size:62.5% But not unnoticed. 07:07.766 --> 07:11.400 align:left position:20% line:83% size:70% A rogue male who arrived with the buffalo weeks ago 07:11.400 --> 07:13.466 align:left position:20% line:83% size:70% has been biding his time. 07:13.466 --> 07:21.733 align:left position:47.5% line:5% size:42.5% ♪♪ 07:21.733 --> 07:25.566 align:left position:20% line:83% size:70% Over the next few weeks, there's still no rain. 07:29.100 --> 07:33.466 align:left position:15% line:83% size:75% The once mighty Katuma River is little more than a stream. 07:36.266 --> 07:37.966 align:left position:15% line:89% size:75% [ Elephants trumpet, grunt ] 07:46.700 --> 07:47.900 align:left position:25% line:89% size:65% [ Elephant trumpets ] 07:47.900 --> 07:50.200 align:left position:15% line:89% size:75% Reunited with the sisterhood, 07:50.200 --> 07:53.300 align:left position:27.5% line:83% size:62.5% Mwezi does her best to conserve energy. 07:55.800 --> 07:58.933 align:left position:25% line:89% size:65% The pride is growing. 07:58.933 --> 08:02.766 align:left position:22.5% line:83% size:67.5% Mwezi's mother, Patch, has new cubs, too -- 08:02.766 --> 08:04.300 align:left position:30% line:89% size:60% her fifth litter. 08:04.300 --> 08:05.633 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 08:05.633 --> 08:08.033 align:left position:22.5% line:83% size:67.5% An experienced mother, she's well aware of 08:08.033 --> 08:10.233 align:left position:12.5% line:89% size:77.5% how many dangers the cubs face. 08:10.233 --> 08:20.233 align:left position:47.5% line:5% size:42.5% ♪♪ 08:20.233 --> 08:30.233 align:left position:47.5% line:5% size:42.5% ♪♪ 08:30.233 --> 08:40.233 align:left position:47.5% line:5% size:42.5% ♪♪ 08:40.233 --> 08:42.533 align:left position:47.5% line:5% size:42.5% ♪♪ 08:42.533 --> 08:48.600 align:left position:12.5% line:83% size:77.5% They share the dwindling river with elephants and hippos. 08:48.600 --> 08:53.033 align:left position:22.5% line:83% size:67.5% As herbivores, they're no direct threat to the cubs. 08:53.033 --> 08:54.700 align:left position:27.5% line:89% size:62.5% But Patch is jumpy. 08:54.700 --> 08:59.433 align:left position:47.5% line:5% size:42.5% ♪♪ 08:59.433 --> 09:02.800 align:left position:27.5% line:83% size:62.5% The water's edge is not a safe place to be. 09:06.666 --> 09:10.033 align:left position:15% line:89% size:75% Hippos can be unpredictable. 09:10.033 --> 09:13.866 align:left position:22.5% line:83% size:67.5% And crocodiles could be lurking just under the surface. 09:16.900 --> 09:19.433 align:left position:20% line:83% size:70% The cubs must get to know their neighbors. 09:21.600 --> 09:24.100 align:left position:22.5% line:89% size:67.5% [ Elephants grumbling ] 09:31.700 --> 09:34.733 align:left position:25% line:83% size:65% And learn to respect their boundaries. 09:34.733 --> 09:44.200 align:left position:47.5% line:5% size:42.5% ♪♪ 09:44.200 --> 09:48.666 align:left position:22.5% line:83% size:67.5% Katavi is a tough place for lions. 09:48.666 --> 09:53.033 align:left position:15% line:83% size:75% Few cubs survive their first year here at the best of times. 09:53.033 --> 10:03.033 align:left position:47.5% line:5% size:42.5% ♪♪ 10:03.033 --> 10:11.300 align:left position:47.5% line:5% size:42.5% ♪♪ 10:11.300 --> 10:13.533 align:left position:47.5% line:5% size:42.5% ♪♪ 10:13.533 --> 10:16.933 align:left position:25% line:83% size:65% With scant resources and a missing father, 10:16.933 --> 10:19.900 align:left position:25% line:83% size:65% this family is facing the worst of times. 10:22.966 --> 10:27.100 align:left position:17.5% line:89% size:72.5% But there is one positive. 10:27.100 --> 10:30.533 align:left position:25% line:83% size:65% The rest of the pride is together. 10:30.533 --> 10:34.533 align:left position:15% line:83% size:75% Patch and Mwezi can share the task of raising the eight cubs 10:34.533 --> 10:36.400 align:left position:22.5% line:89% size:67.5% they have between them. 10:36.400 --> 10:42.500 align:left position:47.5% line:5% size:42.5% ♪♪ 10:42.500 --> 10:44.333 align:left position:20% line:89% size:70% Set back from the river, 10:44.333 --> 10:48.166 align:left position:27.5% line:83% size:62.5% this grove of trees is the ideal base for the pride. 10:58.300 --> 11:02.400 align:left position:17.5% line:83% size:72.5% Nooks and crannies provide places to escape the heat... 11:05.800 --> 11:08.300 align:left position:17.5% line:89% size:72.5% ...and hide, if necessary. 11:10.933 --> 11:13.400 align:left position:27.5% line:83% size:62.5% While the grown-ups use the higher levels 11:13.400 --> 11:16.233 align:left position:27.5% line:83% size:62.5% as a vantage point for spotting prey 11:16.233 --> 11:18.533 align:left position:25% line:83% size:65% and potential threats to the cubs. 11:22.533 --> 11:24.400 align:left position:17.5% line:89% size:72.5% In the cool of the morning, 11:24.400 --> 11:27.433 align:left position:27.5% line:83% size:62.5% Patch usually leads the pride on patrol. 11:30.566 --> 11:33.466 align:left position:35% line:83% size:55% She's hungry and running out of milk. 11:33.466 --> 11:36.133 align:left position:30% line:89% size:60% [ Cubs mewling ] 11:36.133 --> 11:38.466 align:left position:47.5% line:5% size:42.5% ♪♪ 11:38.466 --> 11:41.833 align:left position:30% line:83% size:60% Despite this, she doesn't join the pride today. 11:41.833 --> 11:50.266 align:left position:47.5% line:5% size:42.5% ♪♪ 11:50.266 --> 11:53.866 align:left position:25% line:83% size:65% Mwezi remains behind on mothering duty, too. 11:57.866 --> 12:02.666 align:left position:12.5% line:83% size:77.5% Adult lions can survive without food for almost two weeks. 12:04.866 --> 12:06.900 align:left position:30% line:89% size:60% The cubs cannot. 12:10.133 --> 12:13.766 align:left position:12.5% line:83% size:77.5% The rest of the pride sets off along the banks of the Katuma 12:13.766 --> 12:16.366 align:left position:20% line:83% size:70% where they can stay close to shade and water 12:16.366 --> 12:17.933 align:left position:27.5% line:89% size:62.5% in the rising heat. 12:17.933 --> 12:23.266 align:left position:47.5% line:5% size:42.5% ♪♪ 12:23.266 --> 12:25.700 align:left position:12.5% line:89% size:77.5% With so little rain this year, 12:25.700 --> 12:28.600 align:left position:22.5% line:83% size:67.5% only the largest bends in the river are deep enough 12:28.600 --> 12:32.400 align:left position:25% line:89% size:65% for hippos to wallow. 12:32.400 --> 12:34.700 align:left position:22.5% line:89% size:67.5% Space is at a premium, 12:34.700 --> 12:36.900 align:left position:10% line:89% size:80% so securing a place in the water 12:36.900 --> 12:39.700 align:left position:35% line:83% size:55% means taking extraordinary measures. 12:42.133 --> 12:45.333 align:left position:15% line:83% size:75% Displaced by low water levels upstream, 12:45.333 --> 12:49.633 align:left position:12.5% line:83% size:77.5% these two males are challenging the dominant resident bull. 12:50.600 --> 12:53.366 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 12:56.166 --> 13:01.700 align:left position:12.5% line:83% size:77.5% This is extremely unusual, even for this experienced alpha male. 13:01.700 --> 13:07.200 align:left position:47.5% line:5% size:42.5% ♪♪ 13:07.200 --> 13:11.066 align:left position:17.5% line:83% size:72.5% It's unnerving for a female and her vulnerable calf. 13:11.066 --> 13:13.900 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 13:13.900 --> 13:23.533 align:left position:47.5% line:5% size:42.5% ♪♪ 13:23.533 --> 13:27.700 align:left position:10% line:83% size:80% The resident alpha male faces up to one of the challengers... 13:27.700 --> 13:35.333 align:left position:47.5% line:5% size:42.5% ♪♪ 13:35.333 --> 13:37.800 align:left position:15% line:89% size:75% ...who seems to back down... 13:37.800 --> 13:43.800 align:left position:47.5% line:5% size:42.5% ♪♪ 13:43.800 --> 13:46.866 align:left position:27.5% line:89% size:62.5% [ Hippo grunting ] 13:46.866 --> 13:50.566 align:left position:25% line:83% size:65% ...but then proceeds to enter the bull's territory... 13:53.733 --> 13:58.500 align:left position:25% line:83% size:65% ...much to the dismay of the resident females. 13:58.500 --> 14:01.166 align:left position:35% line:83% size:55% The alpha is not sure what to do. 14:03.900 --> 14:06.566 align:left position:22.5% line:83% size:67.5% Try to displace the guy in the water... 14:07.733 --> 14:09.100 align:left position:30% line:89% size:60% [ Hippo bellows ] 14:09.100 --> 14:12.766 align:left position:25% line:83% size:65% ...or take on the one bellowing at him on land? 14:12.766 --> 14:14.533 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 14:14.533 --> 14:19.400 align:left position:47.5% line:5% size:42.5% ♪♪ 14:19.400 --> 14:23.000 align:left position:22.5% line:83% size:67.5% He's never encountered a situation like this before. 14:23.000 --> 14:30.533 align:left position:47.5% line:5% size:42.5% ♪♪ 14:30.533 --> 14:37.233 align:left position:12.5% line:83% size:77.5% Opening his jaws as wide as he can might warn off his attacker. 14:37.233 --> 14:38.900 align:left position:35% line:89% size:55% No such luck. 14:38.900 --> 14:42.133 align:left position:30% line:89% size:60% [ Hippos bellow ] 14:42.133 --> 14:45.166 align:left position:22.5% line:83% size:67.5% And his threat display has backfired. 14:45.166 --> 14:48.200 align:left position:32.5% line:83% size:57.5% His nose is now well and truly pierced. 14:48.200 --> 14:51.833 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 14:58.333 --> 15:01.333 align:left position:25% line:83% size:65% The other challenger seizes the opportunity... 15:01.333 --> 15:05.000 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 15:05.000 --> 15:07.100 align:left position:17.5% line:89% size:72.5% ...and joins in the fight. 15:11.100 --> 15:14.466 align:left position:27.5% line:83% size:62.5% The poor old alpha is in dire straits. 15:14.466 --> 15:18.633 align:left position:27.5% line:89% size:62.5% [ Hippo growling ] 15:18.633 --> 15:23.800 align:left position:17.5% line:83% size:72.5% Attack from two cooperating males is incredibly rare. 15:23.800 --> 15:28.033 align:left position:17.5% line:83% size:72.5% They have a combined weight of over 10,000 pounds. 15:30.766 --> 15:34.700 align:left position:15% line:83% size:75% And the strongest bite force of any land animal. 15:38.866 --> 15:42.333 align:left position:22.5% line:83% size:67.5% They push and pull him into deeper water. 15:42.333 --> 15:48.900 align:left position:47.5% line:5% size:42.5% ♪♪ 15:48.900 --> 15:50.800 align:left position:12.5% line:89% size:77.5% Even at rest, a hippo can only 15:50.800 --> 15:53.666 align:left position:32.5% line:83% size:57.5% hold its breath for five minutes. 15:53.666 --> 15:56.066 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 15:56.066 --> 15:57.700 align:left position:15% line:89% size:75% The challengers seem to know 15:57.700 --> 16:00.666 align:left position:22.5% line:83% size:67.5% that holding him under will drown him. 16:00.666 --> 16:10.666 align:left position:47.5% line:5% size:42.5% ♪♪ 16:10.666 --> 16:17.066 align:left position:47.5% line:5% size:42.5% ♪♪ 16:17.066 --> 16:19.033 align:left position:27.5% line:89% size:62.5% If the alpha dies, 16:19.033 --> 16:22.966 align:left position:20% line:83% size:70% this baby hippo is likely to be killed by his successors. 16:22.966 --> 16:31.600 align:left position:47.5% line:5% size:42.5% ♪♪ 16:31.600 --> 16:36.866 align:left position:27.5% line:83% size:62.5% So, as the old bull takes his final breaths, 16:36.866 --> 16:40.600 align:left position:15% line:83% size:75% the mother quietly slips away with her calf. 16:40.600 --> 16:42.866 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 16:45.933 --> 16:51.033 align:left position:20% line:83% size:70% A coup by two hippo bulls is out of the ordinary. 16:51.033 --> 16:53.833 align:left position:15% line:89% size:75% But this is no ordinary year. 16:56.333 --> 16:59.000 align:left position:27.5% line:83% size:62.5% A deepening drought brought about 16:59.000 --> 17:01.700 align:left position:22.5% line:83% size:67.5% by a once-in-a-lifetime weather shift 17:01.700 --> 17:05.466 align:left position:15% line:83% size:75% is altering animal behaviors across Katavi. 17:09.533 --> 17:11.333 align:left position:27.5% line:89% size:62.5% As a new day dawns 17:11.333 --> 17:14.300 align:left position:22.5% line:83% size:67.5% on a radically changed hippo colony... 17:14.300 --> 17:23.700 align:left position:47.5% line:5% size:42.5% ♪♪ 17:23.700 --> 17:26.466 align:left position:47.5% line:5% size:42.5% ♪♪ 17:26.466 --> 17:29.600 align:left position:32.5% line:83% size:57.5% ...the old bull who was once their protector, 17:29.600 --> 17:31.566 align:left position:17.5% line:89% size:72.5% the father of their young, 17:31.566 --> 17:35.366 align:left position:15% line:83% size:75% lies dead in one of the last remaining water channels. 17:37.600 --> 17:42.266 align:left position:15% line:83% size:75% One by one, the clan approach and begin gently nuzzling him. 17:45.766 --> 17:48.700 align:left position:27.5% line:83% size:62.5% It's not clear what is happening here. 17:48.700 --> 17:58.700 align:left position:47.5% line:5% size:42.5% ♪♪ 17:58.700 --> 18:01.433 align:left position:12.5% line:89% size:77.5% As more gather around his body, 18:01.433 --> 18:05.066 align:left position:17.5% line:83% size:72.5% it's hard not to interpret this behavior as mourning. 18:05.066 --> 18:07.966 align:left position:30% line:89% size:60% [ Hippo bellows ] 18:07.966 --> 18:11.733 align:left position:12.5% line:83% size:77.5% Or at least as a way of coming to terms with their loss. 18:11.733 --> 18:15.266 align:left position:47.5% line:5% size:42.5% ♪♪ 18:15.266 --> 18:17.366 align:left position:30% line:89% size:60% [ Hippo bellows ] 18:17.366 --> 18:23.833 align:left position:47.5% line:5% size:42.5% ♪♪ 18:23.833 --> 18:27.833 align:left position:17.5% line:83% size:72.5% This type of procession has been observed with elephants 18:27.833 --> 18:30.866 align:left position:25% line:83% size:65% but is extremely rare amongst hippos. 18:30.866 --> 18:33.033 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 18:33.033 --> 18:39.066 align:left position:47.5% line:5% size:42.5% ♪♪ 18:39.066 --> 18:41.300 align:left position:22.5% line:89% size:67.5% [ Elephants grunting ] 18:41.300 --> 18:46.900 align:left position:47.5% line:5% size:42.5% ♪♪ 18:46.900 --> 18:50.600 align:left position:12.5% line:83% size:77.5% These sweltering temperatures, without relief from rain, 18:50.600 --> 18:54.166 align:left position:20% line:83% size:70% have not been experienced for almost a hundred years. 18:56.833 --> 19:01.233 align:left position:12.5% line:83% size:77.5% Shady branches provide respite from the oppressive heat. 19:03.633 --> 19:05.633 align:left position:37.5% line:83% size:52.5% One reason why tree climbing 19:05.633 --> 19:08.433 align:left position:30% line:83% size:60% is a vital skill for Katavi's lions. 19:08.433 --> 19:13.700 align:left position:47.5% line:5% size:42.5% ♪♪ 19:13.700 --> 19:17.733 align:left position:12.5% line:83% size:77.5% Mwezi would never have spotted the warthogs from ground level. 19:17.733 --> 19:26.366 align:left position:47.5% line:5% size:42.5% ♪♪ 19:26.366 --> 19:28.233 align:left position:20% line:89% size:70% She'll need to be quick. 19:28.233 --> 19:38.233 align:left position:47.5% line:5% size:42.5% ♪♪ 19:38.233 --> 19:41.800 align:left position:47.5% line:5% size:42.5% ♪♪ 19:41.800 --> 19:44.466 align:left position:37.5% line:89% size:52.5% And sneaky. 19:44.466 --> 19:46.666 align:left position:17.5% line:89% size:72.5% Using the gullies as cover, 19:46.666 --> 19:50.200 align:left position:12.5% line:83% size:77.5% she might be able to get close enough to launch an attack. 19:50.200 --> 20:00.200 align:left position:47.5% line:5% size:42.5% ♪♪ 20:00.200 --> 20:10.166 align:left position:47.5% line:5% size:42.5% ♪♪ 20:10.166 --> 20:12.333 align:left position:27.5% line:89% size:62.5% [ Warthog squeals ] 20:12.333 --> 20:14.300 align:left position:47.5% line:5% size:42.5% ♪♪ 20:14.300 --> 20:16.866 align:left position:20% line:83% size:70% Sprinting for long enough to catch a warthog 20:16.866 --> 20:19.333 align:left position:17.5% line:89% size:72.5% in this heat is impossible. 20:21.733 --> 20:24.033 align:left position:27.5% line:83% size:62.5% But something else catches her eye. 20:25.566 --> 20:27.700 align:left position:22.5% line:89% size:67.5% [ Vultures squawking ] 20:27.700 --> 20:31.233 align:left position:27.5% line:83% size:62.5% Vultures are always worth investigating. 20:33.633 --> 20:37.033 align:left position:27.5% line:83% size:62.5% They can spot prey from 4 miles away. 20:39.666 --> 20:44.800 align:left position:25% line:83% size:65% But a feast this size won't stay secret for long. 20:44.800 --> 20:50.166 align:left position:22.5% line:83% size:67.5% The death of the hippo is a bounty for the crocodiles. 20:50.166 --> 20:51.933 align:left position:20% line:89% size:70% If they can get into it. 20:55.366 --> 20:58.966 align:left position:17.5% line:83% size:72.5% The largest and wisest croc knows the technique. 21:00.233 --> 21:03.933 align:left position:30% line:89% size:60% Grip...and twist. 21:04.933 --> 21:07.400 align:left position:27.5% line:83% size:62.5% These ancients are perfectly adapted 21:07.400 --> 21:09.800 align:left position:10% line:89% size:80% to a feast-and-famine existence. 21:09.800 --> 21:13.933 align:left position:47.5% line:5% size:42.5% ♪♪ 21:13.933 --> 21:17.800 align:left position:22.5% line:83% size:67.5% This meal will keep the whole float going for months. 21:17.800 --> 21:20.633 align:left position:47.5% line:5% size:42.5% ♪♪ 21:23.200 --> 21:25.000 align:left position:25% line:89% size:65% Alone with the cubs, 21:25.000 --> 21:27.966 align:left position:27.5% line:83% size:62.5% Patch is weakening and desperate for a meal. 21:32.833 --> 21:35.600 align:left position:25% line:89% size:65% [ Elephant trumpets ] 21:35.600 --> 21:38.066 align:left position:22.5% line:89% size:67.5% Mwezi has not returned. 21:38.066 --> 21:45.566 align:left position:47.5% line:5% size:42.5% ♪♪ 21:45.566 --> 21:49.933 align:left position:20% line:83% size:70% Patch knows that vultures are a sure sign of food, too. 21:52.800 --> 21:55.966 align:left position:35% line:83% size:55% It's a lesson all lions learn early. 21:55.966 --> 22:00.200 align:left position:47.5% line:5% size:42.5% ♪♪ 22:00.200 --> 22:02.833 align:left position:30% line:83% size:60% A potential meal right on her doorstep 22:02.833 --> 22:05.200 align:left position:17.5% line:89% size:72.5% is too tempting to pass up. 22:05.200 --> 22:11.900 align:left position:47.5% line:5% size:42.5% ♪♪ 22:11.900 --> 22:15.300 align:left position:15% line:83% size:75% Patch knows leaving the cubs is risky. 22:18.233 --> 22:21.566 align:left position:17.5% line:89% size:72.5% But she's losing condition. 22:21.566 --> 22:25.200 align:left position:27.5% line:89% size:62.5% She's no milk left. 22:25.200 --> 22:28.433 align:left position:25% line:83% size:65% And if she can't feed the little ones, they'll die. 22:28.433 --> 22:38.400 align:left position:47.5% line:5% size:42.5% ♪♪ 22:38.400 --> 22:42.166 align:left position:15% line:83% size:75% The cubs have never been left completely alone before. 22:45.033 --> 22:47.966 align:left position:27.5% line:83% size:62.5% Camouflage is their only protection. 22:50.900 --> 22:53.033 align:left position:25% line:83% size:65% But on the other side of the river, 22:53.033 --> 22:59.766 align:left position:10% line:83% size:80% the rogue male is poised to take advantage of any opportunity. 22:59.766 --> 23:02.033 align:left position:15% line:89% size:75% Camouflage may not be enough. 23:02.033 --> 23:07.766 align:left position:47.5% line:5% size:42.5% ♪♪ 23:07.766 --> 23:09.766 align:left position:22.5% line:89% size:67.5% In her weakened state, 23:09.766 --> 23:13.600 align:left position:17.5% line:83% size:72.5% walking just one mile along the riverbank is an effort. 23:13.600 --> 23:18.833 align:left position:47.5% line:5% size:42.5% ♪♪ 23:18.833 --> 23:23.366 align:left position:22.5% line:83% size:67.5% But the scent of flesh in the air drives Patch on. 23:26.266 --> 23:29.266 align:left position:35% line:83% size:55% And at last, she recognizes Mwezi. 23:29.266 --> 23:34.100 align:left position:47.5% line:5% size:42.5% ♪♪ 23:34.100 --> 23:38.466 align:left position:15% line:83% size:75% Stepping into the water with crocodiles is nerve-racking. 23:38.466 --> 23:43.533 align:left position:47.5% line:5% size:42.5% ♪♪ 23:43.533 --> 23:47.300 align:left position:15% line:83% size:75% Patch knows well that getting too close to those teeth 23:47.300 --> 23:48.966 align:left position:30% line:89% size:60% can be hazardous. 23:48.966 --> 23:51.066 align:left position:27.5% line:89% size:62.5% [ Lioness growls ] 23:51.066 --> 23:53.733 align:left position:47.5% line:5% size:42.5% ♪♪ 23:53.733 --> 24:02.566 align:left position:47.5% line:5% size:42.5% ♪♪ 24:02.566 --> 24:06.300 align:left position:25% line:83% size:65% If a croc grabs her, she'll never escape. 24:10.633 --> 24:13.233 align:left position:22.5% line:83% size:67.5% But with her own teeth wearing down, 24:13.233 --> 24:17.933 align:left position:10% line:83% size:80% the soft hippo flesh is just the meal she so desperately needs. 24:17.933 --> 24:27.933 align:left position:47.5% line:5% size:42.5% ♪♪ 24:27.933 --> 24:37.933 align:left position:47.5% line:5% size:42.5% ♪♪ 24:37.933 --> 24:40.666 align:left position:47.5% line:5% size:42.5% ♪♪ 24:40.666 --> 24:43.566 align:left position:20% line:89% size:70% Starvation emboldens her. 24:44.800 --> 24:47.733 align:left position:25% line:89% size:65% [ Lioness growling ] 24:47.733 --> 24:52.733 align:left position:47.5% line:5% size:42.5% ♪♪ 24:52.733 --> 24:56.700 align:left position:25% line:83% size:65% But with every bite, she's dancing with death. 24:56.700 --> 24:59.533 align:left position:25% line:89% size:65% [ Lioness growling ] 24:59.533 --> 25:09.600 align:left position:47.5% line:5% size:42.5% ♪♪ 25:09.600 --> 25:17.400 align:left position:47.5% line:5% size:42.5% ♪♪ 25:17.400 --> 25:22.600 align:left position:22.5% line:83% size:67.5% Not a moment too soon, reinforcements arrive. 25:22.600 --> 25:25.066 align:left position:12.5% line:89% size:77.5% The rest of the pride on patrol 25:25.066 --> 25:28.766 align:left position:12.5% line:83% size:77.5% have also followed the vultures to the hippo carcass. 25:28.766 --> 25:38.766 align:left position:47.5% line:5% size:42.5% ♪♪ 25:38.766 --> 25:48.766 align:left position:47.5% line:5% size:42.5% ♪♪ 25:48.766 --> 25:56.233 align:left position:47.5% line:5% size:42.5% ♪♪ 25:56.233 --> 25:58.566 align:left position:15% line:89% size:75% The balance of power shifts. 25:58.566 --> 26:06.866 align:left position:47.5% line:5% size:42.5% ♪♪ 26:06.866 --> 26:11.466 align:left position:12.5% line:83% size:77.5% And reluctantly, the crocodiles relinquish their prize. 26:11.466 --> 26:14.100 align:left position:27.5% line:89% size:62.5% [ Lioness growls ] 26:14.100 --> 26:18.866 align:left position:47.5% line:5% size:42.5% ♪♪ 26:18.866 --> 26:22.533 align:left position:40% line:83% size:50% At last, the pride can feed properly. 26:22.533 --> 26:27.300 align:left position:47.5% line:5% size:42.5% ♪♪ 26:27.300 --> 26:29.300 align:left position:20% line:89% size:70% Each will eat their fill, 26:29.300 --> 26:32.066 align:left position:32.5% line:83% size:57.5% up to a quarter of their own body weight. 26:32.066 --> 26:42.066 align:left position:47.5% line:5% size:42.5% ♪♪ 26:42.066 --> 26:49.900 align:left position:47.5% line:5% size:42.5% ♪♪ 26:49.900 --> 26:53.200 align:left position:12.5% line:83% size:77.5% But with the whole pride absent from the den, 26:53.200 --> 26:56.566 align:left position:27.5% line:83% size:62.5% they could pay the ultimate price for their meal. 27:02.166 --> 27:04.833 align:left position:17.5% line:89% size:72.5% Less than a mile downriver, 27:04.833 --> 27:08.600 align:left position:17.5% line:83% size:72.5% the rogue male is crossing into the pride's territory. 27:08.600 --> 27:18.600 align:left position:47.5% line:5% size:42.5% ♪♪ 27:18.600 --> 27:25.366 align:left position:47.5% line:5% size:42.5% ♪♪ 27:25.366 --> 27:28.433 align:left position:12.5% line:89% size:77.5% He's been watching and waiting. 27:28.433 --> 27:37.133 align:left position:47.5% line:5% size:42.5% ♪♪ 27:37.133 --> 27:42.133 align:left position:12.5% line:83% size:77.5% There's been no sign of Arthur, the pride male, for weeks. 27:42.133 --> 27:46.000 align:left position:47.5% line:5% size:42.5% ♪♪ 27:46.000 --> 27:49.033 align:left position:10% line:89% size:80% The time is ripe for a takeover. 27:49.033 --> 27:54.533 align:left position:47.5% line:5% size:42.5% ♪♪ 27:54.533 --> 27:58.900 align:left position:17.5% line:83% size:72.5% All that stands in his way are the cubs. 27:58.900 --> 28:00.900 align:left position:17.5% line:89% size:72.5% If he's to father his own, 28:00.900 --> 28:05.600 align:left position:25% line:83% size:65% he needs the females to come back into estrus. 28:05.600 --> 28:09.000 align:left position:22.5% line:83% size:67.5% And they won't do that while their infants are nursing. 28:09.000 --> 28:12.600 align:left position:47.5% line:5% size:42.5% ♪♪ 28:17.400 --> 28:20.833 align:left position:25% line:89% size:65% [ Birds chittering ] 28:20.833 --> 28:24.900 align:left position:25% line:83% size:65% Spur-fowl alarm calls prompt the cubs into hiding. 28:38.000 --> 28:40.533 align:left position:15% line:89% size:75% The rogue can smell them now. 28:40.533 --> 28:42.466 align:left position:37.5% line:89% size:52.5% He's close. 28:48.466 --> 28:51.400 align:left position:27.5% line:83% size:62.5% He spotted movement among the branches. 28:55.733 --> 28:59.500 align:left position:20% line:83% size:70% If the cubs stay hidden, they might be safe. 28:59.500 --> 29:09.566 align:left position:47.5% line:5% size:42.5% ♪♪ 29:09.566 --> 29:17.566 align:left position:47.5% line:5% size:42.5% ♪♪ 29:17.566 --> 29:22.300 align:left position:15% line:83% size:75% But the arrival of a stranger arouses the curiosity of one. 29:22.300 --> 29:29.633 align:left position:47.5% line:5% size:42.5% ♪♪ 29:29.633 --> 29:32.200 align:left position:20% line:89% size:70% It's a terrible mistake. 29:32.200 --> 29:33.700 align:left position:17.5% line:89% size:72.5% [ Lion growls, cub yelps ] 29:33.700 --> 29:38.200 align:left position:47.5% line:5% size:42.5% ♪♪ 29:38.200 --> 29:40.500 align:left position:20% line:89% size:70% Confused and frightened, 29:40.500 --> 29:44.300 align:left position:17.5% line:83% size:72.5% the cubs can do nothing but wait for the rogue's next move. 29:58.600 --> 30:00.933 align:left position:10% line:89% size:80% With tree climbing in his blood, 30:00.933 --> 30:05.866 align:left position:15% line:83% size:75% one cub follows his instinct to move higher. 30:05.866 --> 30:08.933 align:left position:17.5% line:83% size:72.5% But he's not strong enough to get up very far. 30:15.800 --> 30:18.000 align:left position:27.5% line:89% size:62.5% [ Insects buzzing ] 30:31.633 --> 30:34.733 align:left position:22.5% line:83% size:67.5% There's nothing for it now but to sit still 30:34.733 --> 30:37.800 align:left position:17.5% line:89% size:72.5% and hope he goes unnoticed. 30:37.800 --> 30:39.900 align:left position:30% line:89% size:60% [ Heart beating ] 30:39.900 --> 30:49.900 align:left position:47.5% line:5% size:42.5% ♪♪ 30:49.900 --> 30:59.900 align:left position:47.5% line:5% size:42.5% ♪♪ 30:59.900 --> 31:09.966 align:left position:47.5% line:5% size:42.5% ♪♪ 31:09.966 --> 31:19.966 align:left position:47.5% line:5% size:42.5% ♪♪ 31:19.966 --> 31:29.966 align:left position:47.5% line:5% size:42.5% ♪♪ 31:29.966 --> 31:39.966 align:left position:47.5% line:5% size:42.5% ♪♪ 31:39.966 --> 31:49.966 align:left position:47.5% line:5% size:42.5% ♪♪ 31:49.966 --> 31:59.966 align:left position:47.5% line:5% size:42.5% ♪♪ 31:59.966 --> 32:10.033 align:left position:47.5% line:5% size:42.5% ♪♪ 32:10.033 --> 32:18.566 align:left position:47.5% line:5% size:42.5% ♪♪ 32:18.566 --> 32:20.166 align:left position:25% line:89% size:65% [ Branches snapping ] 32:21.966 --> 32:23.700 align:left position:30% line:89% size:60% [ Lions growls ] 32:25.700 --> 32:27.600 align:left position:35% line:89% size:55% [ Cub yelps ] 32:27.600 --> 32:29.800 align:left position:32.5% line:89% size:57.5% [ Lion growls ] 32:29.800 --> 32:36.800 align:left position:47.5% line:5% size:42.5% ♪♪ 32:36.800 --> 32:41.700 align:left position:47.5% line:5% size:42.5% ♪♪ 32:41.700 --> 32:45.900 align:left position:20% line:83% size:70% A mile away, Patch cannot have heard her cubs' cries. 32:48.766 --> 32:51.800 align:left position:22.5% line:83% size:67.5% But perhaps she senses something is wrong. 32:51.800 --> 32:56.700 align:left position:47.5% line:5% size:42.5% ♪♪ 32:56.700 --> 32:59.966 align:left position:37.5% line:83% size:52.5% The rogue's brutal mission isn't over. 32:59.966 --> 33:03.300 align:left position:35% line:83% size:55% He won't stop till all the cubs are dead. 33:03.300 --> 33:13.300 align:left position:47.5% line:5% size:42.5% ♪♪ 33:13.300 --> 33:17.100 align:left position:25% line:83% size:65% With stuffed bellies, the pride head back to the den. 33:17.100 --> 33:27.100 align:left position:47.5% line:5% size:42.5% ♪♪ 33:27.100 --> 33:37.100 align:left position:47.5% line:5% size:42.5% ♪♪ 33:37.100 --> 33:47.100 align:left position:47.5% line:5% size:42.5% ♪♪ 33:47.100 --> 33:49.233 align:left position:47.5% line:5% size:42.5% ♪♪ 33:49.233 --> 33:51.500 align:left position:30% line:89% size:60% [ Lioness mewls ] 33:51.500 --> 33:54.066 align:left position:20% line:89% size:70% Patch calls for her cubs. 33:54.066 --> 33:57.766 align:left position:47.5% line:5% size:42.5% ♪♪ 33:57.766 --> 33:59.866 align:left position:12.5% line:89% size:77.5% Normally, they'd come running. 34:02.300 --> 34:03.900 align:left position:30% line:89% size:60% [ Lioness mewls ] 34:03.900 --> 34:07.000 align:left position:32.5% line:83% size:57.5% Mwezi realizes something is wrong. 34:07.000 --> 34:15.266 align:left position:47.5% line:5% size:42.5% ♪♪ 34:15.266 --> 34:16.766 align:left position:30% line:89% size:60% [ Lioness mewls ] 34:16.766 --> 34:21.100 align:left position:20% line:83% size:70% The rogue flees before he and his crime are discovered. 34:21.100 --> 34:23.366 align:left position:47.5% line:5% size:42.5% ♪♪ 34:23.366 --> 34:25.966 align:left position:30% line:89% size:60% [ Lioness mewls ] 34:25.966 --> 34:31.100 align:left position:47.5% line:5% size:42.5% ♪♪ 34:31.100 --> 34:33.900 align:left position:15% line:89% size:75% Still no reply to her calls. 34:37.566 --> 34:39.766 align:left position:40% line:89% size:50% Until... 34:39.766 --> 34:42.600 align:left position:20% line:89% size:70% He's terrified but alive. 34:45.400 --> 34:46.466 align:left position:37.5% line:89% size:52.5% Another... 34:47.800 --> 34:49.400 align:left position:30% line:89% size:60% [ Lioness mewls ] 34:49.400 --> 34:59.400 align:left position:47.5% line:5% size:42.5% ♪♪ 34:59.400 --> 35:01.766 align:left position:47.5% line:5% size:42.5% ♪♪ 35:01.766 --> 35:05.500 align:left position:27.5% line:83% size:62.5% Soft moans reassure their traumatized cubs. 35:05.500 --> 35:09.000 align:left position:30% line:89% size:60% [ Lioness mewls ] 35:09.000 --> 35:14.533 align:left position:17.5% line:83% size:72.5% And one by one, more emerge from their hiding places. 35:14.533 --> 35:18.333 align:left position:47.5% line:5% size:42.5% ♪♪ 35:18.333 --> 35:20.133 align:left position:30% line:89% size:60% [ Lioness mewls ] 35:20.133 --> 35:27.766 align:left position:47.5% line:5% size:42.5% ♪♪ 35:27.766 --> 35:29.766 align:left position:25% line:89% size:65% The family reunites. 35:33.300 --> 35:37.833 align:left position:10% line:89% size:80% In all, there are six survivors. 35:37.833 --> 35:41.366 align:left position:32.5% line:83% size:57.5% Patch and Mwezi have lost one cub each. 35:41.366 --> 35:45.166 align:left position:47.5% line:5% size:42.5% ♪♪ 35:45.166 --> 35:46.833 align:left position:30% line:89% size:60% [ Lioness mewls ] 35:46.833 --> 35:50.200 align:left position:32.5% line:83% size:57.5% But the outcome could have been so much worse. 35:54.400 --> 35:56.766 align:left position:15% line:89% size:75% The pride will have to move. 35:58.833 --> 36:01.600 align:left position:15% line:89% size:75% Their den is no longer safe. 36:04.866 --> 36:07.800 align:left position:10% line:89% size:80% The rogue didn't finish the job. 36:16.000 --> 36:20.766 align:left position:10% line:83% size:80% The weeks wear on and conditions in Katavi deteriorate. 36:20.766 --> 36:25.766 align:left position:47.5% line:5% size:42.5% ♪♪ 36:25.766 --> 36:29.733 align:left position:25% line:83% size:65% Distant storms bring not rain but fire, 36:29.733 --> 36:31.566 align:left position:25% line:89% size:65% sparked by lightning. 36:31.566 --> 36:40.800 align:left position:47.5% line:5% size:42.5% ♪♪ 36:40.800 --> 36:44.266 align:left position:27.5% line:83% size:62.5% Hot winds whip ash into dust devils 36:44.266 --> 36:47.600 align:left position:27.5% line:83% size:62.5% that haunt the land like malevolent spirits. 36:47.600 --> 36:57.600 align:left position:47.5% line:5% size:42.5% ♪♪ 36:57.600 --> 37:02.133 align:left position:47.5% line:5% size:42.5% ♪♪ 37:02.133 --> 37:04.266 align:left position:27.5% line:89% size:62.5% It's hell on Earth. 37:04.266 --> 37:10.333 align:left position:47.5% line:5% size:42.5% ♪♪ 37:10.333 --> 37:14.366 align:left position:10% line:83% size:80% Corralled by swathes of charred, inedible grassland, 37:14.366 --> 37:17.766 align:left position:22.5% line:83% size:67.5% the buffalo are forced to return to the plains. 37:17.766 --> 37:27.766 align:left position:47.5% line:5% size:42.5% ♪♪ 37:27.766 --> 37:31.733 align:left position:47.5% line:5% size:42.5% ♪♪ 37:31.733 --> 37:35.000 align:left position:30% line:83% size:60% Only the hardiest can survive here on the dry, 37:35.000 --> 37:38.933 align:left position:35% line:83% size:55% meager forage and last remnants of water. 37:38.933 --> 37:48.933 align:left position:47.5% line:5% size:42.5% ♪♪ 37:48.933 --> 37:58.933 align:left position:47.5% line:5% size:42.5% ♪♪ 37:58.933 --> 38:02.433 align:left position:27.5% line:83% size:62.5% Arthur has survived against all odds. 38:05.766 --> 38:07.200 align:left position:32.5% line:89% size:57.5% Two months ago, 38:07.200 --> 38:10.866 align:left position:22.5% line:83% size:67.5% he abandoned the pride to follow the buffalo herds. 38:10.866 --> 38:18.766 align:left position:47.5% line:5% size:42.5% ♪♪ 38:18.766 --> 38:22.700 align:left position:30% line:89% size:60% [ Buffalo lows ] 38:22.700 --> 38:25.000 align:left position:22.5% line:89% size:67.5% Emaciated and injured, 38:25.000 --> 38:27.966 align:left position:25% line:83% size:65% his journey with them has taken its toll. 38:27.966 --> 38:37.966 align:left position:47.5% line:5% size:42.5% ♪♪ 38:37.966 --> 38:44.233 align:left position:47.5% line:5% size:42.5% ♪♪ 38:44.233 --> 38:48.333 align:left position:47.5% line:5% size:42.5% ♪♪ 38:48.333 --> 38:52.300 align:left position:17.5% line:83% size:72.5% He cannot tolerate the heat of these open plains. 38:52.300 --> 38:56.833 align:left position:47.5% line:5% size:42.5% ♪♪ 38:56.833 --> 39:00.400 align:left position:35% line:83% size:55% So he returns to his pride's territory... 39:00.400 --> 39:06.000 align:left position:47.5% line:5% size:42.5% ♪♪ 39:06.000 --> 39:07.400 align:left position:32.5% line:89% size:57.5% [ Lion mewls ] 39:07.400 --> 39:10.333 align:left position:22.5% line:83% size:67.5% ...in search of solace from his family. 39:10.333 --> 39:12.733 align:left position:25% line:89% size:65% [ Mewling continues ] 39:12.733 --> 39:19.600 align:left position:47.5% line:5% size:42.5% ♪♪ 39:19.600 --> 39:21.666 align:left position:25% line:89% size:65% [ Mewling continues ] 39:26.233 --> 39:29.700 align:left position:17.5% line:83% size:72.5% But his calls to the pride go unanswered. 39:42.533 --> 39:47.900 align:left position:17.5% line:83% size:72.5% Arthur is not the only male searching for the pride. 39:47.900 --> 39:51.300 align:left position:32.5% line:83% size:57.5% The cub killer is on the prowl, too. 39:51.300 --> 39:53.866 align:left position:47.5% line:5% size:42.5% ♪♪ 39:53.866 --> 39:57.766 align:left position:27.5% line:89% size:62.5% [ Birds squawking ] 39:57.766 --> 40:01.133 align:left position:20% line:83% size:70% More than 10 miles south, Patch and Mwezi 40:01.133 --> 40:03.733 align:left position:25% line:83% size:65% are beyond the reach of Arthur's roars. 40:05.966 --> 40:07.800 align:left position:25% line:89% size:65% In these lean times, 40:07.800 --> 40:10.000 align:left position:15% line:89% size:75% hungry hunters have no choice 40:10.000 --> 40:12.900 align:left position:32.5% line:83% size:57.5% but to cash in on the success of others. 40:12.900 --> 40:15.333 align:left position:47.5% line:5% size:42.5% ♪♪ 40:15.333 --> 40:17.466 align:left position:30% line:83% size:60% [ Lioness growls, crocodile hisses ] 40:17.466 --> 40:21.233 align:left position:22.5% line:83% size:67.5% But these stolen meals never last long. 40:21.233 --> 40:26.866 align:left position:47.5% line:5% size:42.5% ♪♪ 40:26.866 --> 40:28.533 align:left position:27.5% line:89% size:62.5% [ Hyenas yipping ] 40:28.533 --> 40:36.700 align:left position:47.5% line:5% size:42.5% ♪♪ 40:36.700 --> 40:39.266 align:left position:22.5% line:89% size:67.5% And the lions move on. 40:39.266 --> 40:49.266 align:left position:47.5% line:5% size:42.5% ♪♪ 40:49.266 --> 40:57.733 align:left position:47.5% line:5% size:42.5% ♪♪ 41:00.833 --> 41:05.233 align:left position:15% line:83% size:75% Night offers the only relief from the crushing heat. 41:05.233 --> 41:07.133 align:left position:25% line:89% size:65% [ Insects chirping ] 41:07.133 --> 41:08.966 align:left position:20% line:89% size:70% And it's just cool enough 41:08.966 --> 41:12.100 align:left position:20% line:83% size:70% for crocodiles to set out in search of water. 41:16.000 --> 41:20.633 align:left position:22.5% line:83% size:67.5% The largest might weigh over 900 kilograms. 41:20.633 --> 41:30.633 align:left position:47.5% line:5% size:42.5% ♪♪ 41:30.633 --> 41:32.733 align:left position:47.5% line:5% size:42.5% ♪♪ 41:32.733 --> 41:37.100 align:left position:10% line:83% size:80% They can only manage a few steps before needing to rest. 41:37.100 --> 41:47.100 align:left position:47.5% line:5% size:42.5% ♪♪ 41:47.100 --> 41:54.766 align:left position:47.5% line:5% size:42.5% ♪♪ 41:54.766 --> 41:56.500 align:left position:20% line:89% size:70% The hippo mother and baby 41:56.500 --> 41:59.900 align:left position:12.5% line:83% size:77.5% also use the cool of the night to travel. 41:59.900 --> 42:09.966 align:left position:47.5% line:5% size:42.5% ♪♪ 42:09.966 --> 42:13.400 align:left position:47.5% line:5% size:42.5% ♪♪ 42:13.400 --> 42:16.766 align:left position:30% line:83% size:60% As water vanishes from Katavi's lands, 42:16.766 --> 42:19.500 align:left position:40% line:83% size:50% so too do the hippo mother's choices. 42:21.600 --> 42:23.966 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 42:23.966 --> 42:29.200 align:left position:47.5% line:5% size:42.5% ♪♪ 42:29.200 --> 42:33.566 align:left position:15% line:83% size:75% Gone is the safety of her pod and the nursery herds. 42:33.566 --> 42:35.100 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 42:35.100 --> 42:40.533 align:left position:47.5% line:5% size:42.5% ♪♪ 42:40.533 --> 42:45.833 align:left position:17.5% line:83% size:72.5% Now her only option is one of the overcrowded mud wallows. 42:45.833 --> 42:48.000 align:left position:25% line:89% size:65% [ Hippos bellowing ] 42:49.566 --> 42:52.666 align:left position:12.5% line:89% size:77.5% Hardly a safe place for a baby. 42:52.666 --> 42:58.733 align:left position:47.5% line:5% size:42.5% ♪♪ 42:58.733 --> 43:01.200 align:left position:25% line:89% size:65% [ Hippos bellowing ] 43:01.200 --> 43:04.600 align:left position:47.5% line:5% size:42.5% ♪♪ 43:04.600 --> 43:08.633 align:left position:27.5% line:83% size:62.5% But she's not safe out of the pool, either. 43:08.633 --> 43:16.333 align:left position:47.5% line:5% size:42.5% ♪♪ 43:16.333 --> 43:20.066 align:left position:15% line:89% size:75% Hippos outweigh lions 10 to 1 43:20.066 --> 43:22.600 align:left position:10% line:89% size:80% and are rarely targeted as prey. 43:22.600 --> 43:27.700 align:left position:47.5% line:5% size:42.5% ♪♪ 43:27.700 --> 43:30.266 align:left position:17.5% line:89% size:72.5% But everyone is fractious. 43:30.266 --> 43:35.000 align:left position:47.5% line:5% size:42.5% ♪♪ 43:35.000 --> 43:38.566 align:left position:30% line:83% size:60% And hungry lions can do crazy things. 43:38.566 --> 43:48.566 align:left position:47.5% line:5% size:42.5% ♪♪ 43:48.566 --> 43:54.033 align:left position:47.5% line:5% size:42.5% ♪♪ 43:54.033 --> 43:56.000 align:left position:15% line:89% size:75% The mother makes her choice. 43:58.333 --> 44:01.466 align:left position:30% line:83% size:60% Better the melee than the mouth of a predator. 44:03.666 --> 44:06.233 align:left position:15% line:89% size:75% She's chosen her spot wisely. 44:06.233 --> 44:10.366 align:left position:15% line:83% size:75% And old grandfather hippo has no objections to their company. 44:10.366 --> 44:12.566 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 44:12.566 --> 44:22.566 align:left position:47.5% line:5% size:42.5% ♪♪ 44:22.566 --> 44:28.000 align:left position:47.5% line:5% size:42.5% ♪♪ 44:28.000 --> 44:29.666 align:left position:17.5% line:89% size:72.5% And his presence is enough 44:29.666 --> 44:32.500 align:left position:25% line:83% size:65% to dissuade the lions from attacking. 44:32.500 --> 44:39.066 align:left position:47.5% line:5% size:42.5% ♪♪ 44:39.066 --> 44:42.400 align:left position:25% line:83% size:65% They need to look for other opportunities. 44:42.400 --> 44:46.566 align:left position:47.5% line:5% size:42.5% ♪♪ 44:46.566 --> 44:48.566 align:left position:27.5% line:89% size:62.5% [ Hippos grunting ] 44:48.566 --> 44:53.266 align:left position:25% line:83% size:65% A mother with twins, almost unheard of in hippos. 44:53.266 --> 45:02.933 align:left position:47.5% line:5% size:42.5% ♪♪ 45:02.933 --> 45:04.400 align:left position:47.5% line:5% size:42.5% ♪♪ 45:04.400 --> 45:10.000 align:left position:17.5% line:83% size:72.5% If they stay close to her, she'll be able to protect them. 45:10.000 --> 45:13.600 align:left position:12.5% line:83% size:77.5% But it's hard not to panic when you're being stalked by a lion. 45:13.600 --> 45:21.333 align:left position:47.5% line:5% size:42.5% ♪♪ 45:21.333 --> 45:23.766 align:left position:47.5% line:5% size:42.5% ♪♪ 45:23.766 --> 45:25.866 align:left position:17.5% line:89% size:72.5% Their mother is powerless. 45:25.866 --> 45:31.533 align:left position:47.5% line:5% size:42.5% ♪♪ 45:31.533 --> 45:33.900 align:left position:12.5% line:89% size:77.5% If she helps her stricken calf, 45:33.900 --> 45:36.033 align:left position:35% line:83% size:55% she'll leave the other one exposed. 45:36.033 --> 45:40.933 align:left position:47.5% line:5% size:42.5% ♪♪ 45:40.933 --> 45:43.700 align:left position:22.5% line:83% size:67.5% They can only leave him to his fate. 45:43.700 --> 45:50.300 align:left position:47.5% line:5% size:42.5% ♪♪ 45:50.300 --> 45:54.166 align:left position:20% line:83% size:70% A small hippo can't feed the entire pride. 45:54.166 --> 46:01.200 align:left position:47.5% line:5% size:42.5% ♪♪ 46:01.200 --> 46:04.733 align:left position:25% line:83% size:65% As the weather cycle tightens its grip on the region, 46:04.733 --> 46:09.233 align:left position:12.5% line:83% size:77.5% many are drawn to the dwindling Katuma River's last resources. 46:29.600 --> 46:31.466 align:left position:15% line:89% size:75% When your stomach's rumbling, 46:31.466 --> 46:34.400 align:left position:30% line:83% size:60% everything starts to look like prey. 46:34.400 --> 46:44.400 align:left position:47.5% line:5% size:42.5% ♪♪ 46:44.400 --> 46:54.400 align:left position:47.5% line:5% size:42.5% ♪♪ 46:54.400 --> 47:04.466 align:left position:47.5% line:5% size:42.5% ♪♪ 47:04.466 --> 47:05.566 align:left position:47.5% line:5% size:42.5% ♪♪ 47:05.566 --> 47:09.066 align:left position:17.5% line:89% size:72.5% A 3-foot croc seems doable. 47:09.066 --> 47:14.366 align:left position:47.5% line:5% size:42.5% ♪♪ 47:14.366 --> 47:15.566 align:left position:25% line:89% size:65% [ Crocodile hisses ] 47:15.566 --> 47:17.533 align:left position:27.5% line:89% size:62.5% [ Lioness growls ] 47:17.533 --> 47:22.766 align:left position:47.5% line:5% size:42.5% ♪♪ 47:22.766 --> 47:24.766 align:left position:27.5% line:83% size:62.5% [ Crocodile hisses, lioness grunts ] 47:24.766 --> 47:29.133 align:left position:47.5% line:5% size:42.5% ♪♪ 47:29.133 --> 47:32.333 align:left position:37.5% line:83% size:52.5% Grandma is a lot more intimidating. 47:35.066 --> 47:37.233 align:left position:12.5% line:89% size:77.5% Pick on someone your own size. 47:37.233 --> 47:47.233 align:left position:47.5% line:5% size:42.5% ♪♪ 47:47.233 --> 47:50.700 align:left position:47.5% line:5% size:42.5% ♪♪ 47:50.700 --> 47:53.500 align:left position:32.5% line:83% size:57.5% Maybe something with fewer teeth? 47:53.500 --> 48:03.566 align:left position:47.5% line:5% size:42.5% ♪♪ 48:03.566 --> 48:13.566 align:left position:47.5% line:5% size:42.5% ♪♪ 48:13.566 --> 48:16.433 align:left position:47.5% line:5% size:42.5% ♪♪ 48:16.433 --> 48:20.833 align:left position:12.5% line:83% size:77.5% Bellies full of fish, pelicans are slow to get airborne. 48:20.833 --> 48:22.833 align:left position:25% line:89% size:65% [ Pelican screeches ] 48:22.833 --> 48:32.833 align:left position:47.5% line:5% size:42.5% ♪♪ 48:32.833 --> 48:42.833 align:left position:47.5% line:5% size:42.5% ♪♪ 48:42.833 --> 48:47.933 align:left position:27.5% line:83% size:62.5% The young lion has found herself a bonanza. 48:47.933 --> 48:50.533 align:left position:32.5% line:83% size:57.5% Juvenile birds, unaware of the consequences 48:50.533 --> 48:53.433 align:left position:12.5% line:89% size:77.5% of overfeeding, are the target. 48:53.433 --> 48:56.000 align:left position:47.5% line:5% size:42.5% ♪♪ 48:56.000 --> 48:58.500 align:left position:27.5% line:89% size:62.5% [ Pelican squawks ] 48:58.500 --> 49:07.000 align:left position:47.5% line:5% size:42.5% ♪♪ 49:07.000 --> 49:12.733 align:left position:25% line:83% size:65% The frenzied lioness is creating a stockpile. 49:12.733 --> 49:15.866 align:left position:15% line:89% size:75% She selects her next victim, 49:15.866 --> 49:19.566 align:left position:27.5% line:83% size:62.5% grounded by a cargo of excess catfish. 49:23.333 --> 49:25.200 align:left position:32.5% line:89% size:57.5% Target locked. 49:26.766 --> 49:28.566 align:left position:27.5% line:89% size:62.5% [ Pelican squawks ] 49:28.566 --> 49:31.933 align:left position:27.5% line:83% size:62.5% But this pelican's not giving up without a fight. 49:33.033 --> 49:34.866 align:left position:27.5% line:89% size:62.5% [ Pelican hissing ] 49:44.166 --> 49:48.200 align:left position:27.5% line:89% size:62.5% [ Pelican hissing ] 49:54.000 --> 49:55.500 align:left position:27.5% line:89% size:62.5% [ Pelican hissing ] 50:02.900 --> 50:06.033 align:left position:25% line:83% size:65% Time to call it a day and go back to the birds 50:06.033 --> 50:07.533 align:left position:27.5% line:89% size:62.5% she caught earlier. 50:09.666 --> 50:12.366 align:left position:27.5% line:83% size:62.5% If she can remember where she left them. 50:14.866 --> 50:18.833 align:left position:35% line:83% size:55% But her stash has been discovered. 50:18.833 --> 50:23.300 align:left position:35% line:83% size:55% Lions aren't the only opportunists here. 50:23.300 --> 50:25.466 align:left position:20% line:83% size:70% The crocs aren't killing the pelicans, 50:25.466 --> 50:28.866 align:left position:20% line:83% size:70% but they've got no qualms about scavenging the dead. 50:28.866 --> 50:32.766 align:left position:47.5% line:5% size:42.5% ♪♪ 50:32.766 --> 50:35.966 align:left position:32.5% line:83% size:57.5% A harsh lesson for the hungry lioness. 50:35.966 --> 50:42.166 align:left position:47.5% line:5% size:42.5% ♪♪ 50:42.166 --> 50:45.866 align:left position:17.5% line:83% size:72.5% The mud pools are becoming totally overpopulated. 50:45.866 --> 50:48.066 align:left position:22.5% line:89% size:67.5% [ Pelicans squawking ] 50:48.066 --> 50:57.333 align:left position:47.5% line:5% size:42.5% ♪♪ 50:57.333 --> 51:00.766 align:left position:47.5% line:5% size:42.5% ♪♪ 51:00.766 --> 51:02.933 align:left position:17.5% line:89% size:72.5% And under cover of sunset, 51:02.933 --> 51:07.300 align:left position:15% line:83% size:75% the hippo mother and her calf once more slip away, 51:07.300 --> 51:10.166 align:left position:10% line:89% size:80% to take their chances elsewhere. 51:10.166 --> 51:20.166 align:left position:47.5% line:5% size:42.5% ♪♪ 51:20.166 --> 51:23.933 align:left position:47.5% line:5% size:42.5% ♪♪ 51:23.933 --> 51:28.100 align:left position:27.5% line:89% size:62.5% [ Thunder crashes ] 51:28.100 --> 51:33.033 align:left position:25% line:83% size:65% Next time in Katavi, at long last, the rains return. 51:34.700 --> 51:38.033 align:left position:30% line:83% size:60% Relief among all the resident tribes is palpable. 51:38.033 --> 51:47.433 align:left position:47.5% line:5% size:42.5% ♪♪ 51:47.433 --> 51:51.033 align:left position:25% line:83% size:65% Even the crocodiles, ancient survivors, 51:51.033 --> 51:52.633 align:left position:22.5% line:89% size:67.5% were at breaking point. 51:52.633 --> 52:02.700 align:left position:47.5% line:5% size:42.5% ♪♪ 52:02.700 --> 52:04.900 align:left position:47.5% line:5% size:42.5% ♪♪ 52:04.900 --> 52:09.666 align:left position:15% line:83% size:75% The water's return brings the promise of space to spread out. 52:09.666 --> 52:19.666 align:left position:47.5% line:5% size:42.5% ♪♪ 52:19.666 --> 52:22.366 align:left position:47.5% line:5% size:42.5% ♪♪ 52:22.366 --> 52:24.400 align:left position:27.5% line:89% size:62.5% [ Thunder rumbles ] 52:24.400 --> 52:28.500 align:left position:47.5% line:5% size:42.5% ♪♪ 52:28.500 --> 52:31.433 align:left position:22.5% line:89% size:67.5% And the return of prey. 52:31.433 --> 52:34.133 align:left position:30% line:83% size:60% [ Zebra braying, lioness growling ] 52:34.133 --> 52:36.533 align:left position:27.5% line:89% size:62.5% [ Thunder crashes ] 52:36.533 --> 52:42.633 align:left position:12.5% line:83% size:77.5% But as the waters keep rising, relief gives way to trepidation. 52:42.633 --> 52:46.833 align:left position:20% line:83% size:70% Lion cubs are growing up in a flooded Katavi landscape 52:46.833 --> 52:49.266 align:left position:12.5% line:89% size:77.5% that's never been seen before. 52:49.266 --> 52:54.433 align:left position:47.5% line:5% size:42.5% ♪♪ 53:10.866 --> 53:20.800 align:left position:47.5% line:5% size:42.5% ♪♪ 53:20.800 --> 53:30.800 align:left position:47.5% line:5% size:42.5% ♪♪ 53:30.800 --> 53:40.800 align:left position:47.5% line:5% size:42.5% ♪♪ 53:40.800 --> 53:47.900 align:left position:47.5% line:5% size:42.5% ♪♪ 53:47.900 --> 53:51.200 align:left position:10% line:5% size:80% To learn more about what you've  seen on this "Nature" program, 53:51.200 --> 53:53.900 align:left position:32.5% line:5% size:57.5% visit pbs.org. 53:53.900 --> 53:56.600 align:left position:47.5% line:5% size:42.5% ♪♪