1 00:00:11,312 --> 00:00:13,278 Bear: Alone. 2 00:00:15,816 --> 00:00:18,434 Inexperienced. 3 00:00:19,103 --> 00:00:24,106 Life has never been tougher for this young orang. 4 00:00:28,612 --> 00:00:31,547 She will have to go to extraordinary lengths 5 00:00:31,649 --> 00:00:34,433 To find enough food. 6 00:00:37,805 --> 00:00:41,306 A third of her kind will fall and break bones, 7 00:00:42,309 --> 00:00:45,094 Or worse. 8 00:00:56,273 --> 00:01:01,877 In this hostile world only the strongest make it to the top. 9 00:01:04,482 --> 00:01:10,769 (theme music plays). 10 00:01:26,053 --> 00:01:28,771 Torrential rain, tropical heat 11 00:01:28,873 --> 00:01:32,007 And the relentless assault of insects. 12 00:01:33,711 --> 00:01:37,179 If you're not prepared, the jungle will eat you alive. 13 00:01:46,207 --> 00:01:49,908 But these conditions have created a home for more 14 00:01:50,010 --> 00:01:53,512 Species than anywhere else on the planet. 15 00:01:56,117 --> 00:01:59,268 You might think it's an animal eden. 16 00:02:03,274 --> 00:02:06,909 But it's more like a wildlife war zone. 17 00:02:15,236 --> 00:02:17,836 Now that the rains, the lifeblood of these 18 00:02:17,938 --> 00:02:21,874 Extraordinary worlds, are becoming more unpredictable. 19 00:02:26,380 --> 00:02:30,265 The battle for survival has never been fiercer. 20 00:02:43,414 --> 00:02:47,099 Even rain forests have dry seasons. 21 00:02:52,606 --> 00:02:56,942 Rivers become the focus of jungle life. 22 00:03:04,668 --> 00:03:09,838 A jaguar, south america's apex predator. 23 00:03:21,001 --> 00:03:24,836 Jaguars will hunt anything; 24 00:03:26,840 --> 00:03:31,143 From a vulture to an anaconda. 25 00:03:43,841 --> 00:03:45,474 (squeaking). 26 00:03:49,313 --> 00:03:51,113 (barking). 27 00:04:00,074 --> 00:04:03,175 But nothing's guaranteed. 28 00:04:06,547 --> 00:04:10,415 It's been days since she's eaten. 29 00:04:20,544 --> 00:04:24,379 Jaguars are the most aquatic of all big cats. 30 00:04:28,402 --> 00:04:31,870 She'll have more success in the water. 31 00:04:39,046 --> 00:04:41,046 Capybara. 32 00:04:49,640 --> 00:04:53,041 A big opportunity. 33 00:05:00,601 --> 00:05:03,402 (barking). 34 00:05:08,509 --> 00:05:11,977 There are other options. 35 00:05:23,440 --> 00:05:26,575 But there's also competition. 36 00:05:30,147 --> 00:05:33,081 A male. 37 00:05:33,384 --> 00:05:36,001 He's hunted here for over a decade, 38 00:05:36,103 --> 00:05:41,073 Taking on dangerous prey and other jaguars. 39 00:05:49,717 --> 00:05:54,236 Life here isn't getting any easier. 40 00:05:55,873 --> 00:05:58,874 As dry seasons become more extreme, 41 00:05:58,976 --> 00:06:03,011 Competition for prey increases. 42 00:06:12,806 --> 00:06:17,275 Better for her to hunt in less contested waters. 43 00:06:30,841 --> 00:06:34,176 Where prehistoric killers lurk, 44 00:06:35,045 --> 00:06:38,880 Waiting to drag their victims under. 45 00:06:59,503 --> 00:07:03,305 With each step, a trap could snap shut. 46 00:07:19,940 --> 00:07:26,044 ♪ ♪ 47 00:07:54,775 --> 00:08:01,146 ♪ ♪ 48 00:08:01,248 --> 00:08:03,782 With the right bite, 49 00:08:04,902 --> 00:08:08,303 She'll pierce skull and immobilize it. 50 00:08:19,349 --> 00:08:23,768 But this caiman is much more than a mouthful. 51 00:08:36,283 --> 00:08:41,136 A kill this big has rarely been recorded. 52 00:08:46,810 --> 00:08:50,812 It will feed her for days. 53 00:08:55,669 --> 00:08:58,236 For other animals, finding food at the height of the 54 00:08:58,338 --> 00:09:02,507 Dry season is much more of a struggle. 55 00:09:10,250 --> 00:09:14,903 Fruit makes up around 60% of this young orang's diet. 56 00:09:18,675 --> 00:09:22,844 To survive she must form a complex mental map of where 57 00:09:22,946 --> 00:09:26,514 And when to find it. 58 00:09:27,634 --> 00:09:31,736 This takes years. 59 00:09:41,915 --> 00:09:46,534 Up here there's nothing but leaves. 60 00:09:52,576 --> 00:09:55,043 Rainfall has dropped by a third 61 00:09:55,145 --> 00:09:58,346 And droughts are more frequent. 62 00:09:58,582 --> 00:10:01,800 How can she predict where to find food when the world 63 00:10:01,902 --> 00:10:06,037 Around her keeps changing? 64 00:10:11,745 --> 00:10:17,248 The more she searches, the more she risks. 65 00:10:43,410 --> 00:10:48,813 Far below, on the forest floor, 66 00:10:48,915 --> 00:10:53,268 Only 2% of sunlight penetrates. 67 00:10:56,373 --> 00:11:01,710 It's not water that limits life, it's light. 68 00:11:03,213 --> 00:11:08,133 For every 100,000 seeds, only one will survive. 69 00:11:11,972 --> 00:11:16,708 Fewer still will ever reach the canopy. 70 00:11:17,477 --> 00:11:21,546 They have to fight for their place in the sun. 71 00:11:23,817 --> 00:11:26,368 Just half an inch can mean the difference 72 00:11:26,470 --> 00:11:30,905 Between life and death. 73 00:11:45,639 --> 00:11:50,408 Each plant has its own strategy to get ahead. 74 00:12:00,337 --> 00:12:03,938 This struggle makes the jungle one of the most competitive 75 00:12:04,040 --> 00:12:07,609 Environments on earth. 76 00:12:07,711 --> 00:12:11,679 A war in which every leaf matters. 77 00:12:14,017 --> 00:12:15,433 In the dry season, 78 00:12:15,535 --> 00:12:18,703 There's not much else to eat. 79 00:12:19,940 --> 00:12:23,641 Plants fight back with spikes and poison. 80 00:12:31,368 --> 00:12:35,537 Loading their leaves with toxins. 81 00:12:36,640 --> 00:12:41,810 With each bite their victims become sicker and sicker. 82 00:12:48,034 --> 00:12:52,437 There is an antidote, but to reach it, 83 00:12:53,440 --> 00:12:57,542 They must face the jungle's most dangerous predators. 84 00:13:08,572 --> 00:13:10,972 Bear: Poisoned by the plants they eat; 85 00:13:11,074 --> 00:13:13,708 These animals must reach the antidote 86 00:13:13,810 --> 00:13:17,679 But it's a dangerous mission. 87 00:13:18,248 --> 00:13:22,233 Ocelot, jaguars, 88 00:13:23,670 --> 00:13:27,305 And puma are waiting. 89 00:13:31,311 --> 00:13:35,680 A deadly game of hide and seek and at its heart, 90 00:13:39,236 --> 00:13:42,770 A most unlikely cure. 91 00:13:45,709 --> 00:13:50,178 Clay, it's rich in the minerals and salts needed 92 00:13:50,247 --> 00:13:53,915 To neutralize the toxins, 93 00:13:56,069 --> 00:13:59,070 But the longer the dry season, 94 00:13:59,406 --> 00:14:03,107 The more they must visit the clay lick. 95 00:14:10,817 --> 00:14:14,135 (squealing). 96 00:14:22,145 --> 00:14:25,780 With so much danger on the forest floor, 97 00:14:27,284 --> 00:14:30,268 It pays to keep off the ground. 98 00:14:46,570 --> 00:14:50,538 This orang spends 90% of her time in the trees. 99 00:14:57,147 --> 00:15:00,682 As the heaviest arboreal species in the world, 100 00:15:00,850 --> 00:15:03,968 Orangs let their weight do the work. 101 00:15:10,043 --> 00:15:12,610 Tree swaying saves half the energy 102 00:15:12,712 --> 00:15:16,114 She would normally use to climb. 103 00:15:36,002 --> 00:15:38,269 A shortage of food in the dry season 104 00:15:38,371 --> 00:15:42,006 Forces her to rest more. 105 00:15:46,179 --> 00:15:49,414 Each afternoon she makes her bed, 106 00:15:49,516 --> 00:15:51,933 Weaving branches into a nest that will keep her 107 00:15:52,035 --> 00:15:55,269 Safe through the night. 108 00:16:01,411 --> 00:16:05,747 And these trees provide more than food and shelter. 109 00:16:09,502 --> 00:16:14,439 Remarkably they also help create the jungle's weather. 110 00:16:18,511 --> 00:16:23,614 By the end of the dry season the sun is at its most intense. 111 00:16:26,436 --> 00:16:28,736 Trees pump out more water vapor 112 00:16:28,838 --> 00:16:32,774 Than at any other time of year. 113 00:16:35,945 --> 00:16:40,982 In this jungle, almost 20 billion tons every day. 114 00:16:43,003 --> 00:16:47,605 All this water creates the wet season here. 115 00:16:49,042 --> 00:16:52,510 But this jungle is shrinking, 116 00:16:52,612 --> 00:16:56,114 And its rain making power is fading. 117 00:16:59,235 --> 00:17:04,605 Every decade the change from dry to wet comes a week later. 118 00:17:17,303 --> 00:17:21,072 A mighty storm is brewing, 119 00:17:21,508 --> 00:17:25,810 But before it strikes there's a killing to be made. 120 00:17:39,843 --> 00:17:44,245 Competition for food is so intense during the day, 121 00:17:48,301 --> 00:17:52,904 It has forced some creatures into the night. 122 00:18:05,151 --> 00:18:08,402 Spectral tarsiers. 123 00:18:10,206 --> 00:18:12,140 To thrive in the dark, 124 00:18:12,242 --> 00:18:15,910 They've evolved eyes bigger than their brains. 125 00:18:18,548 --> 00:18:23,201 And the best night vision of any primate. 126 00:18:30,577 --> 00:18:34,212 But they still need a little help. 127 00:18:35,415 --> 00:18:38,332 A hunter's moon. 128 00:18:44,841 --> 00:18:48,709 When it's full, this family can catch more. 129 00:18:51,915 --> 00:18:54,832 So, they hunt for twice as long. 130 00:19:11,968 --> 00:19:15,403 But when storm clouds obscure the moon, 131 00:19:17,807 --> 00:19:21,943 Others are better equipped to kill in the shadows. 132 00:19:25,448 --> 00:19:28,900 This python sees with heat, 133 00:19:31,638 --> 00:19:34,705 And smells with taste. 134 00:19:48,137 --> 00:19:51,572 The tables turn again. 135 00:19:52,642 --> 00:19:54,642 (squeaking). 136 00:19:54,777 --> 00:19:59,580 Living in a group means these tarsiers can look out for each other. 137 00:20:00,483 --> 00:20:06,938 (squeaking). 138 00:20:16,316 --> 00:20:21,602 With no element of surprise, the python has no chance. 139 00:20:37,103 --> 00:20:40,605 But life is about to get tougher. 140 00:20:43,443 --> 00:20:46,944 The wet season has arrived. 141 00:20:50,650 --> 00:20:53,634 And it's hitting harder than ever before. 142 00:20:54,070 --> 00:20:58,639 (thunder and lightning). 143 00:21:07,583 --> 00:21:09,934 Bear: The wet season breaks. 144 00:21:10,303 --> 00:21:13,404 (thunder and lightning). 145 00:21:15,975 --> 00:21:18,409 There are more lightning strikes in jungles than 146 00:21:18,511 --> 00:21:20,978 Anywhere else on earth. 147 00:21:26,135 --> 00:21:30,905 By 2050 some estimate they will increase by a third. 148 00:21:48,675 --> 00:21:51,409 The storms that these trees help create 149 00:21:51,511 --> 00:21:54,912 Can also be their downfall. 150 00:22:02,372 --> 00:22:07,208 (creaking, popping). 151 00:22:20,006 --> 00:22:26,410 (crashing). 152 00:22:56,542 --> 00:23:00,378 The death of an emergent tree is an essential part 153 00:23:00,546 --> 00:23:03,547 Of the cycle of life. 154 00:23:05,701 --> 00:23:08,702 The increased humidity during the wet season 155 00:23:08,805 --> 00:23:13,107 Sets off a chain reaction. 156 00:23:18,681 --> 00:23:22,199 Fungi and slime molds race to decompose dead matter 157 00:23:22,301 --> 00:23:25,703 On the forest floor. 158 00:23:40,203 --> 00:23:43,938 Rot and decay run rampant, 159 00:23:44,040 --> 00:23:47,541 Faster than anywhere else on earth. 160 00:23:50,379 --> 00:23:54,048 In some jungles species of fungi outnumber plants 161 00:23:54,150 --> 00:23:57,334 33 to one. 162 00:24:01,641 --> 00:24:05,443 As they feed on the dead they recycle critical nutrients 163 00:24:05,545 --> 00:24:09,647 Which the forest uses to grow. 164 00:24:18,207 --> 00:24:21,876 Many spread by releasing spores, 165 00:24:22,378 --> 00:24:26,547 Up to 30,000 a second. 166 00:24:30,603 --> 00:24:34,171 If just one of these spores lands in the right place and 167 00:24:34,273 --> 00:24:39,243 Takes root, it can colonize a whole new area. 168 00:24:55,845 --> 00:24:59,680 But not all fungi feed on the dead. 169 00:25:09,408 --> 00:25:13,043 Days ago, a spore landed on this ant. 170 00:25:13,279 --> 00:25:16,547 Now she's acting strange. 171 00:25:19,602 --> 00:25:23,704 A network of roots has infiltrated her muscles. 172 00:25:28,844 --> 00:25:32,713 Her body has been taken over by cordyceps, 173 00:25:35,001 --> 00:25:39,036 A parasitic fungus. 174 00:25:43,109 --> 00:25:47,645 It floods her brain with chemicals, drugging her, 175 00:25:50,016 --> 00:25:54,201 Compelling her to head where conditions are perfect. 176 00:26:02,678 --> 00:26:05,579 Just the right amount of light. 177 00:26:05,681 --> 00:26:09,500 Just the right amount of humidity for the parasite 178 00:26:09,602 --> 00:26:12,870 Growing inside. 179 00:26:17,009 --> 00:26:20,744 It forces her to clamp down in a death bite. 180 00:26:21,080 --> 00:26:25,449 And cordyceps reveals its gruesome nature. 181 00:26:43,669 --> 00:26:47,171 After three weeks of growth, 182 00:26:48,341 --> 00:26:52,743 Cordyceps can release its own spores, 183 00:26:54,580 --> 00:26:58,766 Infecting more ants, releasing more spores, 184 00:26:59,835 --> 00:27:02,369 Infecting more ants... 185 00:27:02,471 --> 00:27:06,473 Releasing more spores, infecting more ants, 186 00:27:06,575 --> 00:27:10,010 Infecting more ants, more ants. 187 00:27:16,535 --> 00:27:20,804 Cordyceps can wipe out entire ant colonies. 188 00:27:26,245 --> 00:27:30,714 But more than just ants are at risk. 189 00:27:40,543 --> 00:27:43,644 There are over 600 species of cordyceps 190 00:27:43,746 --> 00:27:47,481 Spread across the world. 191 00:27:47,583 --> 00:27:51,802 Most are found in jungles where they prey on a whole 192 00:27:51,904 --> 00:27:55,839 Host of victims. 193 00:28:08,204 --> 00:28:13,307 (monkey calls). 194 00:28:13,943 --> 00:28:17,578 The wet season brings a flush of fruit to the canopy. 195 00:28:22,868 --> 00:28:28,605 (monkey calls). 196 00:28:30,776 --> 00:28:35,379 Lar gibbons must move fast before it's all gone. 197 00:28:43,806 --> 00:28:48,041 They fly through the trees at 35 miles an hour, 198 00:28:52,548 --> 00:28:55,733 Even with a baby on board. 199 00:29:06,178 --> 00:29:09,847 They can cover 40 feet in a single leap. 200 00:29:35,875 --> 00:29:39,543 But they don't get it right every time. 201 00:29:48,604 --> 00:29:50,404 Bear: This family of lar gibbons 202 00:29:50,506 --> 00:29:52,940 Lives in a dangerous world. 203 00:29:56,579 --> 00:30:00,747 Their forest is being fragmented. 204 00:30:02,401 --> 00:30:08,839 One day they may face a jump they can't quite make. 205 00:30:28,110 --> 00:30:32,946 Food is harder to find as the wet season grows more erratic. 206 00:30:36,268 --> 00:30:39,136 And when the rain comes, it can fall in shorter, 207 00:30:39,238 --> 00:30:42,706 More intense bursts. 208 00:30:46,412 --> 00:30:52,099 If it's too wet, it's best to sit tight. 209 00:31:05,014 --> 00:31:08,565 This orang has learnt a lot from her mother; 210 00:31:09,735 --> 00:31:13,604 How to make a jungle umbrella. 211 00:31:17,509 --> 00:31:22,913 It comes in handy in the rainiest environment on earth. 212 00:31:35,678 --> 00:31:40,314 For many animals, heavy rain stops activity. 213 00:31:43,802 --> 00:31:47,004 But for some that's not an option. 214 00:32:01,704 --> 00:32:05,372 This male booted racket-tailed humming bird lives on the 215 00:32:05,474 --> 00:32:09,009 Brink of starvation. 216 00:32:09,244 --> 00:32:13,680 Just 2 hours without nectar and he could die. 217 00:32:16,402 --> 00:32:20,504 Humming birds have the fastest metabolisms on earth. 218 00:32:22,758 --> 00:32:26,109 Some need to visit 2,000 flowers a day 219 00:32:26,211 --> 00:32:29,746 Just to keep going. 220 00:32:35,738 --> 00:32:38,605 This mountainous forest is one of the few jungles 221 00:32:38,707 --> 00:32:41,808 That is getting wetter. 222 00:32:43,646 --> 00:32:46,980 Heavy rain is predicted to increase and when you weigh 223 00:32:47,082 --> 00:32:52,569 Less than a nickel, raindrops are a bombardment. 224 00:33:10,773 --> 00:33:14,908 Waterlogged feathers slow his progress. 225 00:33:16,779 --> 00:33:20,814 Staying airborne becomes more demanding. 226 00:33:22,968 --> 00:33:28,405 But he's running on empty and the clock is ticking. 227 00:33:37,449 --> 00:33:39,199 Even during a downpour, 228 00:33:39,301 --> 00:33:43,136 Competition for flowers is fierce. 229 00:33:50,813 --> 00:33:53,714 A buff-tailed coronet, 230 00:33:53,816 --> 00:33:56,299 Intent on keeping the nectar-filled flowers 231 00:33:56,402 --> 00:33:59,436 For himself. 232 00:34:04,710 --> 00:34:08,378 The racket-tail is no competition for the coronet. 233 00:34:12,051 --> 00:34:16,269 He must wait for another opportunity. 234 00:34:23,545 --> 00:34:25,412 As the rains slow, 235 00:34:25,514 --> 00:34:29,366 Over 40 species fight for their nectar hit. 236 00:34:44,550 --> 00:34:48,368 With the coronet facing bigger battles, 237 00:34:51,507 --> 00:34:56,643 This is a racket-tail's chance to sneak a sip. 238 00:35:04,103 --> 00:35:06,303 It takes more energy to hover 239 00:35:06,405 --> 00:35:10,006 Than almost any other activity on earth. 240 00:35:10,109 --> 00:35:14,277 We'd have to drink over a can of soda a minute to keep up. 241 00:35:22,104 --> 00:35:24,571 Another racket-tail. 242 00:35:25,274 --> 00:35:29,109 Evenly matched, he won't back down. 243 00:35:31,780 --> 00:35:37,100 Tail splayed, feet forward, he means business. 244 00:36:13,839 --> 00:36:18,542 The winner takes all, but he can't rest, 245 00:36:20,362 --> 00:36:23,813 He still has a lot of flowers to visit. 246 00:36:25,968 --> 00:36:29,669 And the next downpour is never far off. 247 00:36:38,914 --> 00:36:41,548 Rainfall in the andes transforms life 248 00:36:41,650 --> 00:36:44,768 Over 1,000 miles away. 249 00:36:55,080 --> 00:36:58,915 So much water collects in the amazon basin below that the 250 00:36:59,001 --> 00:37:03,003 Earth's crust sinks by 3 inches. 251 00:37:09,745 --> 00:37:13,747 A drowned forest. 252 00:37:16,868 --> 00:37:20,637 This extreme change takes months. 253 00:37:30,916 --> 00:37:34,301 Even so, it can creep up on those who live their life 254 00:37:34,403 --> 00:37:36,970 In slow motion. 255 00:37:45,013 --> 00:37:50,033 Moving between the trees becomes challenging. 256 00:37:50,135 --> 00:37:54,404 She needs to find her next meal, 257 00:37:55,073 --> 00:37:59,209 But she's surrounded. 258 00:38:03,615 --> 00:38:08,969 Creatures that spend most of the year on the forest floor 259 00:38:09,071 --> 00:38:14,140 Now find themselves floating 30 feet above it. 260 00:38:19,114 --> 00:38:23,366 Their only refuge is in the trees. 261 00:38:27,973 --> 00:38:31,641 But she must brave the deep. 262 00:38:45,173 --> 00:38:48,475 Bear: This sloth's home is flooded. 263 00:38:48,577 --> 00:38:52,145 To find her food she must swim. 264 00:38:55,183 --> 00:38:59,336 Defenseless against what lies beneath. 265 00:39:12,901 --> 00:39:15,035 Like most animals here, 266 00:39:15,137 --> 00:39:19,139 Sloths are adapted to get through this annual flood. 267 00:39:22,077 --> 00:39:25,045 Fermenting leaves fill her stomach with gas 268 00:39:25,163 --> 00:39:28,581 That helps keep her afloat. 269 00:39:36,208 --> 00:39:41,077 She's three times faster in water than on land. 270 00:39:49,204 --> 00:39:54,707 When the forest floods, it opens up a whole new world. 271 00:40:04,703 --> 00:40:09,472 Pink river dolphins can explore an area larger than arizona. 272 00:40:15,380 --> 00:40:19,666 They echo-locate to hunt for fish in the murk. 273 00:40:23,572 --> 00:40:27,807 Using higher frequencies than their marine cousins to see 274 00:40:27,909 --> 00:40:31,845 With superior definition. 275 00:40:37,202 --> 00:40:39,536 Recently these floods have been reaching 276 00:40:39,638 --> 00:40:43,139 Record breaking highs. 277 00:40:43,241 --> 00:40:47,143 But there have also been devastating lows. 278 00:40:50,315 --> 00:40:53,967 And as our world changes, drought is the greatest 279 00:40:54,069 --> 00:40:58,171 Natural threat to jungles worldwide. 280 00:41:03,612 --> 00:41:05,879 Australia was once covered by a jungle 281 00:41:05,981 --> 00:41:08,581 Larger than the amazon rainforest. 282 00:41:10,702 --> 00:41:14,204 Now barely 1% survives, 283 00:41:14,806 --> 00:41:18,775 Clinging to what little water remains. 284 00:41:27,969 --> 00:41:32,305 And little red flying foxes cling on with it. 285 00:41:35,310 --> 00:41:38,044 It's 104 fahrenheit. 286 00:41:38,146 --> 00:41:42,765 Just 4 degrees more and this male will die of heat shock. 287 00:41:53,311 --> 00:41:56,946 He needs to escape the sun. 288 00:42:01,369 --> 00:42:04,671 But with hundreds of thousands of bats in the colony, 289 00:42:04,773 --> 00:42:08,675 The shadier spots are hard won. 290 00:42:22,274 --> 00:42:26,776 Exposed, he's dangerously dehydrating. 291 00:42:39,608 --> 00:42:44,277 The river is their only salvation. 292 00:42:55,941 --> 00:42:59,943 But it can also be their ruin. 293 00:43:03,114 --> 00:43:07,033 These waters are infested. 294 00:43:09,104 --> 00:43:12,505 Fresh water crocodiles. 295 00:43:13,441 --> 00:43:16,676 Better to stay away. 296 00:43:16,778 --> 00:43:21,114 Try and hold out till nightfall. 297 00:43:24,669 --> 00:43:29,072 But with every breath, he loses more water. 298 00:43:34,179 --> 00:43:38,047 More and more bats give in to their thirst 299 00:43:40,101 --> 00:43:43,536 And he won't last much longer. 300 00:43:48,343 --> 00:43:52,178 It's safer to share the risk. 301 00:43:59,070 --> 00:44:03,573 To collect water they must dip their fur in the river. 302 00:44:04,009 --> 00:44:08,244 But no one wants to be first. 303 00:45:09,908 --> 00:45:11,607 Safe! 304 00:45:11,710 --> 00:45:17,213 But he must brave this river every day until the rains arrive. 305 00:45:20,468 --> 00:45:24,971 Over the next 50 years it could get too hot and dry for 306 00:45:25,073 --> 00:45:28,674 This colony to survive at all. 307 00:45:32,313 --> 00:45:36,799 Could this be the future for jungles around the world? 308 00:45:46,878 --> 00:45:50,113 These amazing forests not only create oxygen and 309 00:45:50,215 --> 00:45:52,315 Rain that nourish our planet, 310 00:45:52,417 --> 00:45:55,868 They're also home to a greater diversity of animals 311 00:45:55,970 --> 00:45:59,305 Than anywhere else on earth. 312 00:46:03,044 --> 00:46:06,212 These creatures are super specialized to survive all 313 00:46:06,314 --> 00:46:09,565 The complexities of life in the jungle. 314 00:46:09,667 --> 00:46:11,801 But in times of change, 315 00:46:11,903 --> 00:46:15,938 That also leave them highly vulnerable. 316 00:46:17,976 --> 00:46:21,277 It takes years for an orang to learn how to 317 00:46:21,379 --> 00:46:24,380 Find its way in these forests 318 00:46:27,135 --> 00:46:31,971 And today's changing climate makes life even tougher. 319 00:46:35,610 --> 00:46:39,612 And that isn't all she has to contend with. 320 00:46:39,714 --> 00:46:43,132 (chainsaw whirring). 321 00:46:43,234 --> 00:46:45,701 (cracking, popping). 322 00:46:45,804 --> 00:46:48,304 Rainforests around the world are disappearing 323 00:46:48,406 --> 00:46:50,406 Faster than ever before. 324 00:47:08,810 --> 00:47:13,813 Her future, like that of all jungle life, 325 00:47:15,383 --> 00:47:18,167 Has never been less certain. 326 00:47:18,670 --> 00:47:19,869 Captioned by cotter captioning services.