1 00:00:20,688 --> 00:00:22,815 [David Attenborough] Just 50 years ago, 2 00:00:23,483 --> 00:00:26,319 we finally ventured to the moon. 3 00:00:40,374 --> 00:00:45,838 For the very first time, we looked back at our own planet. 4 00:00:53,429 --> 00:00:58,726 Since then, the human population has more than doubled. 5 00:01:04,273 --> 00:01:08,694 This series will celebrate the natural wonders that remain 6 00:01:09,612 --> 00:01:12,323 and reveal what we must preserve 7 00:01:12,698 --> 00:01:16,911 to ensure people and nature thrive. 8 00:01:30,716 --> 00:01:33,886 The Earth still has sanctuaries, 9 00:01:35,596 --> 00:01:40,935 and, on occasion, they hold spectacular gatherings of wildlife. 10 00:01:47,525 --> 00:01:52,405 They provide vital space, but they're disappearing fast. 11 00:02:00,663 --> 00:02:01,956 [wildebeest lowing] 12 00:03:08,189 --> 00:03:12,777 A fifth of the land on our planet is covered by desert. 13 00:03:19,158 --> 00:03:23,996 The driest of all is the Atacama in South America. 14 00:03:27,583 --> 00:03:31,545 There are places here where rain has never been recorded. 15 00:03:44,058 --> 00:03:47,937 Deserts may appear to be barren and empty, 16 00:03:51,482 --> 00:03:54,819 but they are of crucial importance to life. 17 00:04:11,085 --> 00:04:13,713 For those that can overcome their challenges, 18 00:04:14,297 --> 00:04:17,258 they provide a vital refuge. 19 00:04:21,012 --> 00:04:23,014 [wind whistling] 20 00:04:32,231 --> 00:04:34,066 Socotran cormorants, 21 00:04:34,817 --> 00:04:38,946 emerging from a dust storm in the Arabian desert. 22 00:04:46,704 --> 00:04:52,043 It is the very emptiness of this landscape that has brought them here, 23 00:04:55,880 --> 00:04:59,342 and they have come in immense numbers. 24 00:05:01,093 --> 00:05:03,095 [birds squawking] 25 00:05:06,098 --> 00:05:07,975 Fifty thousand of them. 26 00:05:13,606 --> 00:05:16,192 A quarter of the total population. 27 00:05:24,200 --> 00:05:27,411 They have come because here they can breed... 28 00:05:28,621 --> 00:05:29,997 undisturbed. 29 00:05:45,262 --> 00:05:48,224 But nesting in a desert is difficult. 30 00:05:50,476 --> 00:05:53,979 Temperatures can reach 40 degrees Celsius. 31 00:05:56,357 --> 00:05:59,235 Yet, both the adults and their white chicks 32 00:05:59,318 --> 00:06:01,237 are ready for this challenge. 33 00:06:01,320 --> 00:06:03,322 [birds panting] 34 00:06:05,783 --> 00:06:08,244 They cool themselves by panting. 35 00:06:16,168 --> 00:06:20,840 Any adult that appears to have food in its crop is mobbed. 36 00:06:24,385 --> 00:06:27,346 An adult will only give food to its own chick, 37 00:06:29,640 --> 00:06:31,392 which must be here somewhere. 38 00:06:43,863 --> 00:06:46,657 The chicks chase an adult out into the desert. 39 00:06:54,540 --> 00:06:55,374 No luck. 40 00:06:56,542 --> 00:07:00,337 Now, they must get back quickly to the safety of the colony. 41 00:07:09,346 --> 00:07:11,974 This desert provides the cormorants 42 00:07:12,057 --> 00:07:14,977 with more than just a secure refuge. 43 00:07:31,368 --> 00:07:35,039 Every morning, a mass movement begins. 44 00:07:47,718 --> 00:07:49,220 It's the rush hour. 45 00:08:14,370 --> 00:08:18,040 A shallow arm of the sea, right beside the colony, 46 00:08:18,374 --> 00:08:20,125 is full of food. 47 00:08:21,210 --> 00:08:22,545 [cawing] 48 00:08:23,462 --> 00:08:27,258 This richness comes from the desert itself. 49 00:08:28,634 --> 00:08:30,594 Dust, blown from the land, 50 00:08:30,803 --> 00:08:35,224 contains nutrients that fertilize the surrounding waters. 51 00:08:44,650 --> 00:08:49,613 So, it is the desert itself that enriches the sea. 52 00:09:16,515 --> 00:09:22,563 In Oman, during the summer monsoon, fogs roll in from the sea, 53 00:09:23,564 --> 00:09:26,150 billowing over the Dhofar mountains. 54 00:09:34,617 --> 00:09:39,622 The mists bring just enough moisture to sustain a little vegetation... 55 00:09:47,129 --> 00:09:51,925 and this sparse greenery becomes a focus for life. 56 00:09:59,600 --> 00:10:06,148 Ibex must cross the near vertical cliffs to reach one of the few springs. 57 00:10:09,818 --> 00:10:11,028 But they're nervous... 58 00:10:13,072 --> 00:10:14,615 and with good reason. 59 00:10:22,498 --> 00:10:24,541 An Arabian leopard, 60 00:10:25,876 --> 00:10:29,922 one of less than 200 that survive in the wild. 61 00:10:33,550 --> 00:10:35,260 This male's territory 62 00:10:35,344 --> 00:10:42,309 extends over 350 square kilometers of high mountains and deep wadis. 63 00:10:51,777 --> 00:10:54,446 The southern edge of the Arabian Peninsula 64 00:10:54,947 --> 00:10:58,450 is one of the few places left where there is enough prey 65 00:10:58,909 --> 00:11:02,079 to sustain a population of these leopards. 66 00:11:07,793 --> 00:11:12,423 But even so, there are probably less than 60 individuals 67 00:11:13,090 --> 00:11:16,218 in over 15,000 square kilometers. 68 00:11:23,559 --> 00:11:26,603 These leopards have always been rare, 69 00:11:30,023 --> 00:11:32,067 but now conflict with people 70 00:11:32,443 --> 00:11:35,738 is causing their numbers to decline still further. 71 00:11:37,322 --> 00:11:39,032 [bird chirps] 72 00:11:49,877 --> 00:11:51,545 Few leopards are left, 73 00:11:52,671 --> 00:11:58,093 so what our hidden cameras now capture verges on the miraculous. 74 00:12:05,517 --> 00:12:06,935 A female leopard, 75 00:12:08,854 --> 00:12:11,231 and she is tracking a male. 76 00:12:26,830 --> 00:12:30,417 Such meetings are becoming increasingly rare. 77 00:12:50,145 --> 00:12:51,897 [growling] 78 00:12:55,651 --> 00:12:57,945 This briefest of unions 79 00:12:58,403 --> 00:13:02,574 may ensure the short-term future for these leopards. 80 00:13:08,497 --> 00:13:09,998 But in the longer term, 81 00:13:10,958 --> 00:13:14,336 their fate will depend on their territory being protected. 82 00:13:22,094 --> 00:13:24,304 To the north of the Dhofar mountains 83 00:13:25,013 --> 00:13:29,101 lies a place of almost unimaginable emptiness. 84 00:13:30,894 --> 00:13:32,229 The Rub' al Khali, 85 00:13:34,231 --> 00:13:35,524 the Empty Quarter. 86 00:13:45,117 --> 00:13:46,827 The very name of the place 87 00:13:47,536 --> 00:13:51,331 resonates with the romance of these desert lands. 88 00:13:59,381 --> 00:14:03,385 This is the largest sand sea in the world. 89 00:14:07,556 --> 00:14:11,810 There are parts where human beings never venture. 90 00:14:16,940 --> 00:14:21,111 Only the greatest desert specialists can survive here. 91 00:14:27,784 --> 00:14:29,578 Arabian oryx. 92 00:14:34,041 --> 00:14:35,709 Their ranges are vast, 93 00:14:36,501 --> 00:14:39,922 extending for over 3,000 square kilometers. 94 00:14:43,967 --> 00:14:47,304 This is one of their last refuges. 95 00:14:52,309 --> 00:14:54,561 Once hunted close to extinction, 96 00:14:55,312 --> 00:14:58,607 they have now reclaimed their ancestral territory. 97 00:15:02,569 --> 00:15:07,199 With the help of conservationists, they have returned home. 98 00:15:10,452 --> 00:15:15,624 But reintroduction cannot save all desert animals. 99 00:15:17,000 --> 00:15:18,001 [elephants huffing] 100 00:15:28,261 --> 00:15:29,763 Desert elephants. 101 00:15:34,685 --> 00:15:38,855 Less than 150 survive, here in Namibia. 102 00:15:43,318 --> 00:15:48,240 This oldest of deserts is scarred by dry riverbeds, 103 00:15:48,532 --> 00:15:53,620 carved by water that flows for only one or two days in a year. 104 00:15:58,750 --> 00:16:00,002 An adult elephant 105 00:16:00,210 --> 00:16:06,383 must find up to 200 kilos of food each and every day if it's not to starve. 106 00:16:12,556 --> 00:16:17,769 So, for these last survivors, life is an endless trek. 107 00:16:23,900 --> 00:16:29,364 The herd is guided by a single old female, the matriarch. 108 00:16:32,367 --> 00:16:34,286 She is leading her family 109 00:16:34,578 --> 00:16:38,123 to a special place where food should be available 110 00:16:38,331 --> 00:16:39,916 even in a drought. 111 00:16:46,506 --> 00:16:49,426 She learned of its existence from her mother, 112 00:16:49,926 --> 00:16:51,136 many years ago. 113 00:16:53,180 --> 00:16:57,142 Now, she's teaching her own calf how to get there. 114 00:17:05,067 --> 00:17:08,904 The elephants are not alone in their search for food. 115 00:17:14,868 --> 00:17:16,119 Desert lions. 116 00:17:17,996 --> 00:17:20,791 They are just as rare as the elephants. The calf is protected by its mother. 117 00:17:40,811 --> 00:17:43,063 So the lions let them pass. 118 00:17:48,819 --> 00:17:52,114 Distant trees are a sign of water. 119 00:17:53,740 --> 00:17:54,574 [brays] 120 00:18:16,012 --> 00:18:17,806 The riverbed is dry. 121 00:18:23,186 --> 00:18:26,731 The ana trees, however, are still green. 122 00:18:34,281 --> 00:18:35,448 But there is a problem. 123 00:18:38,535 --> 00:18:39,786 At this time of year, 124 00:18:39,911 --> 00:18:44,040 seedpods from the ana trees usually litter the ground. 125 00:18:47,502 --> 00:18:49,504 Rich food for elephants. 126 00:18:53,842 --> 00:18:57,137 But this year, the crop has failed. 127 00:19:01,391 --> 00:19:06,605 The matriarch has led her herd here for nothing. 128 00:19:15,363 --> 00:19:18,867 Even the trees' leafy branches are out of their reach. 129 00:19:21,369 --> 00:19:26,583 The family has no option but to move on. 130 00:19:45,143 --> 00:19:48,605 A bull, standing nearly four meters tall. 131 00:19:50,649 --> 00:19:53,026 He can reach into the canopy, 132 00:19:55,111 --> 00:19:57,781 and he could be the solution to their problem. 133 00:20:02,160 --> 00:20:07,624 The old female has known him all her life and turned to him for help before. 134 00:20:18,343 --> 00:20:20,637 Elephants can only survive here 135 00:20:20,845 --> 00:20:24,099 because of knowledge passed down over generations. 136 00:20:26,601 --> 00:20:29,854 But less than 20 matriarchs still survive, 137 00:20:32,482 --> 00:20:34,234 and if their knowledge is lost, 138 00:20:35,193 --> 00:20:38,571 elephants may no longer be able to live here. 139 00:20:47,831 --> 00:20:52,836 Deserts cannot support large numbers of animals the year round, 140 00:20:55,171 --> 00:20:58,133 and even those specially adapted to these conditions 141 00:20:59,134 --> 00:21:01,261 can only survive in small numbers. 142 00:21:04,347 --> 00:21:06,349 But on very special occasions, 143 00:21:08,101 --> 00:21:10,603 deserts are transformed. 144 00:21:10,687 --> 00:21:12,689 [thunder rumbling] 145 00:21:17,819 --> 00:21:19,112 Once in a decade, 146 00:21:20,864 --> 00:21:22,532 there may be a cloudburst. 147 00:21:33,668 --> 00:21:36,796 A single one can turn the desert green. 148 00:21:46,890 --> 00:21:48,308 In southern California, 149 00:21:48,683 --> 00:21:51,519 the change is visible from space. 150 00:22:03,406 --> 00:22:07,243 Hundreds of square kilometers suddenly bloom. 151 00:22:24,886 --> 00:22:28,014 If such transformations become regular, 152 00:22:28,765 --> 00:22:30,934 a new habitat may develop. 153 00:22:33,895 --> 00:22:35,105 Grasslands. 154 00:22:36,022 --> 00:22:38,983 One of our planet's most productive landscapes. 155 00:22:45,865 --> 00:22:50,578 They support the greatest aggregations of large animals on Earth. 156 00:22:53,706 --> 00:22:58,336 The Serengeti sustains herds of over a million wildebeest. 157 00:23:03,425 --> 00:23:07,679 They follow the rains to crop the newly sprung grass. 158 00:23:21,067 --> 00:23:24,279 These vast herds attract predators. 159 00:23:37,083 --> 00:23:39,335 Five male cheetahs. 160 00:23:40,295 --> 00:23:43,756 One of the largest coalitions ever observed. 161 00:23:49,429 --> 00:23:54,642 They dominate a territory of 450 square kilometers. 162 00:23:59,939 --> 00:24:01,733 They patrol it together, 163 00:24:04,235 --> 00:24:06,237 and that attracts attention. 164 00:24:06,321 --> 00:24:07,780 [birds chirruping] 165 00:24:39,812 --> 00:24:41,147 [braying] 166 00:24:56,037 --> 00:24:58,289 A change of strategy is needed 167 00:24:59,374 --> 00:25:01,042 if they're to hunt successfully. 168 00:25:11,010 --> 00:25:12,428 They need cover. 169 00:25:44,794 --> 00:25:48,798 An adult wildebeest is a formidable opponent. 170 00:26:05,523 --> 00:26:09,027 Four of the cheetahs start the stalk, 171 00:26:10,028 --> 00:26:12,363 walking directly towards the prey. 172 00:26:15,366 --> 00:26:18,828 The fifth creeps around the side. 173 00:26:50,234 --> 00:26:54,989 They need to get really close before making their final sprint. 174 00:27:07,335 --> 00:27:08,544 They're nearly there. 175 00:27:44,205 --> 00:27:45,915 All five break cover, 176 00:27:47,166 --> 00:27:49,627 each cat chasing a different target. 177 00:28:05,309 --> 00:28:06,352 It's chaos. 178 00:28:12,358 --> 00:28:16,571 A single cheetah is not strong enough to defend its prize. 179 00:28:30,710 --> 00:28:32,503 They must work together. 180 00:29:14,629 --> 00:29:19,550 These dramas only continue because the Serengeti is protected, 181 00:29:20,384 --> 00:29:23,679 and has been for over 65 years. 182 00:29:26,599 --> 00:29:29,352 But the Serengeti is an exception. 183 00:29:31,354 --> 00:29:37,944 Across the planet, space for grasslands has been steadily disappearing. 184 00:29:38,945 --> 00:29:41,614 [huffs] 185 00:29:43,282 --> 00:29:48,246 A hundred and eighty years ago, herds of bison, millions strong, 186 00:29:48,830 --> 00:29:51,624 grazed the Great Plains of North America. 187 00:29:55,378 --> 00:30:00,132 They roamed across a prairie a hundred times larger than the Serengeti. 188 00:30:07,974 --> 00:30:10,726 This was the true wild west. 189 00:30:24,699 --> 00:30:26,409 [roaring] 190 00:30:26,826 --> 00:30:29,954 Every summer, the males roared their challenges 191 00:30:31,581 --> 00:30:34,458 and fought for possession of the females. 192 00:30:55,646 --> 00:31:00,151 As the rut intensified, the fights became more brutal. 193 00:31:34,060 --> 00:31:39,023 Today, however, most of the prairie is silent. 194 00:31:44,236 --> 00:31:47,406 Humans slaughtered the great herds. 195 00:31:51,160 --> 00:31:54,497 Less than 30,000 wild bison remain, 196 00:31:57,375 --> 00:32:01,128 and 90 percent of the prairie has been lost, 197 00:32:03,047 --> 00:32:05,341 most of it to agriculture. 198 00:32:29,490 --> 00:32:32,827 What we eat, and how we produce it, 199 00:32:33,536 --> 00:32:37,581 will determine the future of our planet's grasslands. 200 00:32:45,297 --> 00:32:49,593 Our past could show us how we can feed ourselves 201 00:32:49,969 --> 00:32:51,929 and still leave room for nature. 202 00:32:55,891 --> 00:33:01,439 The ancient hay meadows of Hungary, still farmed in the traditional way, 203 00:33:01,939 --> 00:33:05,359 provide habitats of extraordinary richness. 204 00:33:17,204 --> 00:33:19,415 Butterflies are abundant. 205 00:33:22,376 --> 00:33:27,840 One species has an almost unbelievably complex life cycle. 206 00:33:32,178 --> 00:33:33,888 The Alcon blue. 207 00:33:36,432 --> 00:33:42,021 Each female must mate and lay eggs on just one species of plant, 208 00:33:42,521 --> 00:33:43,606 the marsh gentian. 209 00:33:50,571 --> 00:33:53,115 The eggs soon hatch into caterpillars. 210 00:33:55,868 --> 00:34:00,289 High up on the plants, they're safe from predators below. 211 00:34:10,674 --> 00:34:14,720 But then, the caterpillars do something seemingly suicidal. 212 00:34:18,849 --> 00:34:23,521 They abseil down on threads of silk to the ground below... 213 00:34:25,356 --> 00:34:27,274 and into danger. 214 00:34:35,116 --> 00:34:38,327 They have no defense against the marauding ants, 215 00:34:38,410 --> 00:34:39,620 which carry them off. 216 00:34:44,291 --> 00:34:48,462 But this is exactly what the caterpillars need to happen. 217 00:34:51,257 --> 00:34:55,719 They're producing a scent like that emitted by an ant larva. 218 00:35:00,099 --> 00:35:03,811 The ants respond by taking them back to their nest. There, they deposit them in the colony's brood chamber. 219 00:35:17,408 --> 00:35:21,912 The purple-colored caterpillars, lying among the ants' own white larvae, 220 00:35:22,830 --> 00:35:25,249 give off just the right signals. 221 00:35:29,962 --> 00:35:32,423 And the nurse ants rush to feed them. 222 00:35:35,092 --> 00:35:36,343 But there is more. 223 00:35:38,053 --> 00:35:43,184 The caterpillars now start to mimic the sounds made by the queen ant, 224 00:35:46,061 --> 00:35:49,231 and, as a result, the ants treat them like royalty. 225 00:35:53,527 --> 00:35:54,987 If food gets short, 226 00:35:55,070 --> 00:35:59,033 the ants will even feed the caterpillars instead of their own young. 227 00:36:01,702 --> 00:36:06,665 They give them such quantities of food that the caterpillars grow hugely. 228 00:36:14,381 --> 00:36:19,929 And there, underground, the caterpillars feed and grow for nearly two years. 229 00:36:21,180 --> 00:36:27,394 Until, one day, there is nothing for the ants to feed. 230 00:36:30,272 --> 00:36:32,274 The caterpillars have pupated. 231 00:36:41,200 --> 00:36:42,451 But a few weeks later, 232 00:36:43,285 --> 00:36:46,956 out crawls an Alcon blue butterfly. 233 00:37:07,268 --> 00:37:09,228 Now, they begin to leave the nest 234 00:37:09,311 --> 00:37:13,565 that has been their home for the last 23 months. 235 00:37:31,125 --> 00:37:33,836 The young adult makes its way out of the nest 236 00:37:34,336 --> 00:37:35,838 and clambers up a grass stem. 237 00:37:36,588 --> 00:37:41,552 Its wings expand as it prepares to fly off and find a mate. 238 00:37:46,140 --> 00:37:50,519 This complex life may be laborsaving for the butterfly, 239 00:37:51,020 --> 00:37:52,396 but it's risky. 240 00:37:54,523 --> 00:37:57,901 If anything happened to the ants or to the gentian, 241 00:37:58,277 --> 00:38:01,405 the Alcon blue would become extinct. 242 00:38:16,754 --> 00:38:19,840 Only tiny fragments of these ancient meadows 243 00:38:19,923 --> 00:38:21,216 are left in Europe. 244 00:38:24,094 --> 00:38:26,722 But beyond them to the east, 245 00:38:27,097 --> 00:38:33,312 once stretched grasslands that extended for a fifth of the way around the world, 246 00:38:33,854 --> 00:38:35,939 from Romania to China. 247 00:38:58,962 --> 00:39:03,258 Here, there are places where, for mile after endless mile, 248 00:39:03,884 --> 00:39:06,387 there are no roads or fences. 249 00:39:11,642 --> 00:39:16,480 Here, where there are no trees, eagles nest on the ground. 250 00:39:24,446 --> 00:39:30,369 Once, these eagles would have preyed on antelope that numbered in millions. 251 00:39:35,666 --> 00:39:37,626 And some are still here. 252 00:39:39,002 --> 00:39:43,799 These are saiga, antelope that live nowhere else in the world. 253 00:39:46,051 --> 00:39:49,304 Their extraordinary noses are specially adapted 254 00:39:49,513 --> 00:39:53,308 to filter out the dust kicked up by the immense herds 255 00:39:53,475 --> 00:39:54,643 that once lived here. 256 00:39:58,355 --> 00:40:00,858 Now, they're critically endangered. 257 00:40:01,692 --> 00:40:06,155 Poaching and the loss of habitat have had a devastating impact on them. 258 00:40:09,491 --> 00:40:13,537 But conservation efforts have recently started to make a difference. 259 00:40:16,081 --> 00:40:20,711 There is still hope for these extraordinary plains dwellers. 260 00:40:28,510 --> 00:40:33,223 And the proof of this can be found further east, in Mongolia, 261 00:40:33,849 --> 00:40:37,519 where the grasslands still remain largely intact. 262 00:40:43,150 --> 00:40:45,736 These are Przewalski’s horses. 263 00:40:47,154 --> 00:40:50,240 Fifty years ago, they were extinct in the wild, 264 00:40:51,241 --> 00:40:54,119 but a few adults survived in captivity. 265 00:41:00,292 --> 00:41:03,712 Careful breeding from 12 of them increased their numbers 266 00:41:03,962 --> 00:41:07,007 until there were sufficient to release on the plains. 267 00:41:09,801 --> 00:41:11,929 These are their descendants. 268 00:41:22,064 --> 00:41:24,983 A stallion protects each harem. 269 00:41:29,613 --> 00:41:34,326 They must be vigilant, and they race to defend their herd... 270 00:41:43,544 --> 00:41:46,672 or chase off bachelors trying to lure away a mare. 271 00:42:01,311 --> 00:42:03,730 With their numbers now topping 300, 272 00:42:05,148 --> 00:42:08,694 the future for these wild horses looks more secure. 273 00:42:12,906 --> 00:42:15,033 Their recovery was only possible 274 00:42:15,450 --> 00:42:20,706 because the vast Mongolian steppe still remains largely untouched. 275 00:42:33,260 --> 00:42:39,349 These grasses are some of the tallest to be found anywhere on our planet. 276 00:42:42,769 --> 00:42:47,357 They're so tall they can conceal elephants. 277 00:42:56,408 --> 00:43:00,329 They make the giants that live among them seem small. 278 00:43:19,348 --> 00:43:21,266 A last hiding place 279 00:43:21,350 --> 00:43:25,729 for the highly endangered greater one-horned rhino. 280 00:43:36,531 --> 00:43:38,033 This is India, 281 00:43:39,785 --> 00:43:42,329 one of the most populous countries on Earth. 282 00:43:45,332 --> 00:43:51,463 Yet here there is a great determination to protect these crucial grasslands. 283 00:44:06,645 --> 00:44:08,188 What must it be like 284 00:44:08,438 --> 00:44:12,234 to live in this dense, claustrophobic world? 285 00:44:21,952 --> 00:44:26,039 Just moving about could mean walking into danger. 286 00:44:41,722 --> 00:44:46,351 The grasses conceal tigers. 287 00:44:57,112 --> 00:45:00,615 Stripes and shadows blend. 288 00:45:14,588 --> 00:45:18,967 Long grass may hide a tigress from her prey, 289 00:45:25,015 --> 00:45:28,852 but it also hides the prey from her. 290 00:45:37,277 --> 00:45:40,489 She must get within 20 meters of it. 291 00:45:46,661 --> 00:45:51,583 And she must always know exactly where the prey are hidden. 292 00:46:42,843 --> 00:46:44,636 She may have lost them. 293 00:47:06,950 --> 00:47:09,160 She risks a look. 294 00:47:13,039 --> 00:47:14,165 [bleats] 295 00:47:17,586 --> 00:47:19,588 [bleating resonates] 296 00:47:38,356 --> 00:47:44,446 Every deer around now knows exactly where the tiger is. 297 00:47:58,793 --> 00:48:02,756 Others have heard the signal that announced her failure. 298 00:48:11,890 --> 00:48:12,849 Her cubs. 299 00:48:22,609 --> 00:48:25,278 She had left them hidden in the grass. 300 00:48:28,657 --> 00:48:29,991 [growling] 301 00:48:39,668 --> 00:48:41,753 In the last hundred years, 302 00:48:42,128 --> 00:48:47,842 the number of wild tigers has declined by over 95 percent. 303 00:48:51,596 --> 00:48:53,014 But here in India, 304 00:48:53,765 --> 00:48:56,476 despite the enormous pressure from poaching, 305 00:48:57,560 --> 00:48:59,604 and a growing human population, 306 00:49:01,106 --> 00:49:04,109 tiger numbers are actually increasing. 307 00:49:13,493 --> 00:49:18,623 Protect the precious space that grasslands and deserts provide, 308 00:49:21,209 --> 00:49:24,212 and the animals will bounce back. 309 00:49:40,562 --> 00:49:42,772 Please visit ourplanet.com 310 00:49:43,106 --> 00:49:47,944 to discover what we need to do now to protect wild grasslands. 311 00:49:49,988 --> 00:49:55,869 ♪ I can hear the whole world Singing together ♪ 312 00:49:58,496 --> 00:50:04,461 ♪ I can hear the whole world Say it's now or never ♪ 313 00:50:07,255 --> 00:50:11,551 ♪ 'Cause it's not too late If we change our ways ♪ 314 00:50:11,634 --> 00:50:15,096 ♪ And connect the dots to our problems ♪ 315 00:50:15,513 --> 00:50:21,186 ♪ I can hear the whole world Say we're in this together ♪