1 00:00:20,645 --> 00:00:22,772 [David Attenborough] Just 50 years ago, 2 00:00:23,440 --> 00:00:26,276 we finally ventured to the moon. 3 00:00:40,331 --> 00:00:45,795 For the very first time, we looked back at our own planet. 4 00:00:53,386 --> 00:00:58,683 Since then, the human population has more than doubled. 5 00:01:04,230 --> 00:01:08,651 This series will celebrate the natural wonders that remain 6 00:01:09,569 --> 00:01:12,280 and reveal what we must preserve 7 00:01:12,655 --> 00:01:16,868 to ensure people and nature thrive. 8 00:01:30,673 --> 00:01:33,843 The Earth still has sanctuaries, 9 00:01:35,553 --> 00:01:40,892 and, on occasion, they hold spectacular gatherings of wildlife. 10 00:01:47,482 --> 00:01:52,362 They provide vital space, but they're disappearing fast. 11 00:02:00,620 --> 00:02:01,913 [wildebeest lowing] 12 00:03:08,146 --> 00:03:12,734 A fifth of the land  on our planet is covered by desert. 13 00:03:19,115 --> 00:03:23,953 The driest of all is the Atacama in South America. 14 00:03:27,540 --> 00:03:31,502 There are places here where rain has never been recorded. 15 00:03:44,015 --> 00:03:47,894 Deserts may appear to be barren and empty, 16 00:03:51,439 --> 00:03:54,776 but they are of crucial importance to life. 17 00:04:11,042 --> 00:04:13,670 For those that can overcome their challenges, 18 00:04:14,254 --> 00:04:17,215 they provide a vital refuge. 19 00:04:20,969 --> 00:04:22,971 [wind whistling] 20 00:04:32,188 --> 00:04:34,023 Socotran cormorants, 21 00:04:34,774 --> 00:04:38,903 emerging from a dust storm in the Arabian desert. 22 00:04:46,661 --> 00:04:52,000 It is the very emptiness of this landscape that has brought them here, 23 00:04:55,837 --> 00:04:59,299 and they have come in immense numbers. 24 00:05:01,050 --> 00:05:03,052 [birds squawking] 25 00:05:06,055 --> 00:05:07,932 Fifty thousand of them. 26 00:05:13,563 --> 00:05:16,149 A quarter of the total population. 27 00:05:24,157 --> 00:05:27,368 They have come because here they can breed... 28 00:05:28,578 --> 00:05:29,954 undisturbed. 29 00:05:45,219 --> 00:05:48,181 But nesting in a desert is difficult. 30 00:05:50,433 --> 00:05:53,936 Temperatures can reach 40 degrees Celsius. 31 00:05:56,314 --> 00:05:59,192 Yet, both the adults and their white chicks 32 00:05:59,275 --> 00:06:01,194 are ready for this challenge. 33 00:06:01,277 --> 00:06:03,279 [birds panting] 34 00:06:05,740 --> 00:06:08,201 They cool themselves  by panting. 35 00:06:16,125 --> 00:06:20,797 Any adult that appears to have food in its crop is mobbed. 36 00:06:24,342 --> 00:06:27,303 An adult will only give food to its own chick, 37 00:06:29,597 --> 00:06:31,349 which must be here somewhere. 38 00:06:43,820 --> 00:06:46,614 The chicks chase an adult out into the desert. 39 00:06:54,497 --> 00:06:55,331 No luck. 40 00:06:56,499 --> 00:07:00,294 Now, they must get back quickly to the safety of the colony. 41 00:07:09,303 --> 00:07:11,931 This desert provides the cormorants 42 00:07:12,014 --> 00:07:14,934 with more than just a secure refuge. 43 00:07:31,325 --> 00:07:34,996 Every morning, a mass movement begins. 44 00:07:47,675 --> 00:07:49,177 It's the rush hour. 45 00:08:14,327 --> 00:08:17,997 A shallow arm of the sea, right beside the colony, 46 00:08:18,331 --> 00:08:20,082 is full of food. 47 00:08:21,167 --> 00:08:22,502 [cawing] 48 00:08:23,419 --> 00:08:27,215 This richness comes from the desert itself. 49 00:08:28,591 --> 00:08:30,551 Dust, blown from the land, 50 00:08:30,760 --> 00:08:35,181 contains nutrients that fertilize the surrounding waters. 51 00:08:44,607 --> 00:08:49,570 So, it is the desert itself that enriches the sea. 52 00:09:16,472 --> 00:09:22,520 In Oman, during the summer monsoon, fogs roll in from the sea, 53 00:09:23,521 --> 00:09:26,107 billowing over the Dhofar mountains. 54 00:09:34,574 --> 00:09:39,579 The mists bring just enough moisture to sustain a little vegetation... 55 00:09:47,086 --> 00:09:51,882 and this sparse greenery becomes a focus for life. 56 00:09:59,557 --> 00:10:06,105 Ibex must cross the near vertical cliffs to reach one of the few springs. 57 00:10:09,775 --> 00:10:10,985 But they're nervous... 58 00:10:13,029 --> 00:10:14,572 and with good reason. 59 00:10:22,455 --> 00:10:24,498 An Arabian leopard, 60 00:10:25,833 --> 00:10:29,879 one of less than 200 that survive in the wild. 61 00:10:33,507 --> 00:10:35,217 This male's territory 62 00:10:35,301 --> 00:10:42,266 extends over 350 square kilometers of high mountains and deep wadis. 63 00:10:51,734 --> 00:10:54,403 The southern edge of the Arabian Peninsula 64 00:10:54,904 --> 00:10:58,407 is one of the few places left where there is enough prey 65 00:10:58,866 --> 00:11:02,036 to sustain a population of these leopards. 66 00:11:07,750 --> 00:11:12,380 But even so, there are probably less than 60 individuals 67 00:11:13,047 --> 00:11:16,175 in over 15,000 square kilometers. 68 00:11:23,516 --> 00:11:26,560 These leopards have always been rare, 69 00:11:29,980 --> 00:11:32,024 but now conflict with people 70 00:11:32,400 --> 00:11:35,695 is causing their numbers to decline still further. 71 00:11:37,279 --> 00:11:38,989 [bird chirps] 72 00:11:49,834 --> 00:11:51,502 Few leopards are left, 73 00:11:52,628 --> 00:11:58,050 so what our hidden cameras now capture verges on the miraculous. 74 00:12:05,474 --> 00:12:06,892 A female leopard, 75 00:12:08,811 --> 00:12:11,188 and she is tracking a male. 76 00:12:26,787 --> 00:12:30,374 Such meetings are becoming increasingly rare. 77 00:12:50,102 --> 00:12:51,854 [growling] 78 00:12:55,608 --> 00:12:57,902 This briefest of unions 79 00:12:58,360 --> 00:13:02,531 may ensure the short-term future for these leopards. 80 00:13:08,454 --> 00:13:09,955 But in the longer term, 81 00:13:10,915 --> 00:13:14,293 their fate will depend on their territory being protected. 82 00:13:22,051 --> 00:13:24,261 To the north of the Dhofar mountains 83 00:13:24,970 --> 00:13:29,058 lies a place of almost unimaginable emptiness. 84 00:13:30,851 --> 00:13:32,186 The Rub' al Khali, 85 00:13:34,188 --> 00:13:35,481 the Empty Quarter. 86 00:13:45,074 --> 00:13:46,784 The very name of the place 87 00:13:47,493 --> 00:13:51,288 resonates with the romance of these desert lands. 88 00:13:59,338 --> 00:14:03,342 This is the largest sand sea in the world. 89 00:14:07,513 --> 00:14:11,767 There are parts where human beings never venture. 90 00:14:16,897 --> 00:14:21,068 Only the greatest desert specialists can survive here. 91 00:14:27,741 --> 00:14:29,535 Arabian oryx. 92 00:14:33,998 --> 00:14:35,666 Their ranges are vast, 93 00:14:36,458 --> 00:14:39,879 extending for over 3,000 square kilometers. 94 00:14:43,924 --> 00:14:47,261 This is one of their last refuges. 95 00:14:52,266 --> 00:14:54,518 Once hunted close to extinction, 96 00:14:55,269 --> 00:14:58,564 they have now reclaimed their ancestral territory. 97 00:15:02,526 --> 00:15:07,156 With the help of conservationists, they have returned home. 98 00:15:10,409 --> 00:15:15,581 But reintroduction cannot save all desert animals. 99 00:15:16,957 --> 00:15:17,958 [elephants huffing] 100 00:15:28,218 --> 00:15:29,720 Desert elephants. 101 00:15:34,642 --> 00:15:38,812 Less than 150 survive, here in Namibia. 102 00:15:43,275 --> 00:15:48,197 This oldest of deserts is scarred by dry riverbeds, 103 00:15:48,489 --> 00:15:53,577 carved by water that flows for only one or two days in a year. 104 00:15:58,707 --> 00:15:59,959 An adult elephant 105 00:16:00,167 --> 00:16:06,340 must find up to 200 kilos of food each and every day if it's not to starve. 106 00:16:12,513 --> 00:16:17,726 So, for these last survivors, life is an endless trek. 107 00:16:23,857 --> 00:16:29,321 The herd is guided by a single old female, the matriarch. 108 00:16:32,324 --> 00:16:34,243 She is leading her family 109 00:16:34,535 --> 00:16:38,080 to a special place where food should be available 110 00:16:38,288 --> 00:16:39,873 even in a drought. 111 00:16:46,463 --> 00:16:49,383 She learned of its existence from her mother, 112 00:16:49,883 --> 00:16:51,093 many years ago. 113 00:16:53,137 --> 00:16:57,099 Now, she's teaching her own calf how to get there. 114 00:17:05,024 --> 00:17:08,861 The elephants are not alone in their search for food. 115 00:17:14,825 --> 00:17:16,076 Desert lions. 116 00:17:17,953 --> 00:17:20,748 They are just as rare as the elephants. 117 00:17:30,215 --> 00:17:33,010 The calf is protected by its mother. 118 00:17:40,768 --> 00:17:43,020 So the lions let them pass. 119 00:17:48,776 --> 00:17:52,071 Distant trees are a sign of water. 120 00:17:53,697 --> 00:17:54,531 [brays] 121 00:18:15,969 --> 00:18:17,763 The riverbed is dry. 122 00:18:23,143 --> 00:18:26,688 The ana trees, however, are still green. 123 00:18:34,238 --> 00:18:35,405 But there is a problem. 124 00:18:38,492 --> 00:18:39,743 At this time of year, 125 00:18:39,868 --> 00:18:43,997 seedpods from the ana trees usually litter the ground. 126 00:18:47,459 --> 00:18:49,461 Rich food for elephants. 127 00:18:53,799 --> 00:18:57,094 But this year, the crop has failed. 128 00:19:01,348 --> 00:19:06,562 The matriarch has led her herd here for nothing. 129 00:19:15,320 --> 00:19:18,824 Even the trees' leafy branches are out of their reach. 130 00:19:21,326 --> 00:19:26,540 The family has no option but to move on. 131 00:19:45,100 --> 00:19:48,562 A bull, standing nearly four meters tall. 132 00:19:50,606 --> 00:19:52,983 He can reach into the canopy, 133 00:19:55,068 --> 00:19:57,738 and he could be the solution to their problem. 134 00:20:02,117 --> 00:20:07,581 The old female has known him all her life and turned to him for help before. 135 00:20:18,300 --> 00:20:20,594 Elephants can only survive here 136 00:20:20,802 --> 00:20:24,056 because of knowledge passed down over generations. 137 00:20:26,558 --> 00:20:29,811 But less than 20 matriarchs still survive, 138 00:20:32,439 --> 00:20:34,191 and if their knowledge is lost, 139 00:20:35,150 --> 00:20:38,528 elephants may no longer be able to live here. 140 00:20:47,788 --> 00:20:52,793 Deserts cannot support large numbers of animals the year round, 141 00:20:55,128 --> 00:20:58,090 and even those specially adapted to these conditions 142 00:20:59,091 --> 00:21:01,218 can only survive in small numbers. 143 00:21:04,304 --> 00:21:06,306 But on very special occasions, 144 00:21:08,058 --> 00:21:10,560 deserts are transformed. 145 00:21:10,644 --> 00:21:12,646 [thunder rumbling] 146 00:21:17,776 --> 00:21:19,069 Once in a decade, 147 00:21:20,821 --> 00:21:22,489 there may be a cloudburst. 148 00:21:33,625 --> 00:21:36,753 A single one can turn the desert green. 149 00:21:46,847 --> 00:21:48,265 In southern California, 150 00:21:48,640 --> 00:21:51,476 the change is visible from space. 151 00:22:03,363 --> 00:22:07,200 Hundreds of square kilometers suddenly bloom. 152 00:22:24,843 --> 00:22:27,971 If such transformations become regular, 153 00:22:28,722 --> 00:22:30,891 a new habitat may develop. 154 00:22:33,852 --> 00:22:35,062 Grasslands. 155 00:22:35,979 --> 00:22:38,940 One of our planet's most productive landscapes. 156 00:22:45,822 --> 00:22:50,535 They support the greatest aggregations of large animals on Earth. 157 00:22:53,663 --> 00:22:58,293 The Serengeti sustains herds of over a million wildebeest. 158 00:23:03,382 --> 00:23:07,636 They follow the rains to crop the newly sprung grass. 159 00:23:21,024 --> 00:23:24,236 These vast herds attract predators. 160 00:23:37,040 --> 00:23:39,292 Five male cheetahs. 161 00:23:40,252 --> 00:23:43,713 One of the largest coalitions ever observed. 162 00:23:49,386 --> 00:23:54,599 They dominate a territory of 450 square kilometers. 163 00:23:59,896 --> 00:24:01,690 They patrol it together, 164 00:24:04,192 --> 00:24:06,194 and that attracts attention. 165 00:24:06,278 --> 00:24:07,737 [birds chirruping] 166 00:24:39,769 --> 00:24:41,104 [braying] 167 00:24:55,994 --> 00:24:58,246 A change of strategy is needed 168 00:24:59,331 --> 00:25:00,999 if they're to hunt successfully. 169 00:25:10,967 --> 00:25:12,385 They need cover. 170 00:25:44,751 --> 00:25:48,755 An adult wildebeest is a formidable opponent. 171 00:26:05,480 --> 00:26:08,984 Four of the cheetahs start the stalk, 172 00:26:09,985 --> 00:26:12,320 walking directly towards the prey. 173 00:26:15,323 --> 00:26:18,785 The fifth creeps around the side. 174 00:26:50,191 --> 00:26:54,946 They need to get really close before making their final sprint. 175 00:27:07,292 --> 00:27:08,501 They're nearly there. 176 00:27:44,162 --> 00:27:45,872 All five break cover, 177 00:27:47,123 --> 00:27:49,584 each cat chasing a different target. 178 00:28:05,266 --> 00:28:06,309 It's chaos. 179 00:28:12,315 --> 00:28:16,528 A single cheetah is not strong enough to defend its prize. 180 00:28:30,667 --> 00:28:32,460 They must work together. 181 00:29:14,586 --> 00:29:19,507 These dramas only continue because the Serengeti is protected, 182 00:29:20,341 --> 00:29:23,636 and has been for over 65 years. 183 00:29:26,556 --> 00:29:29,309 But the Serengeti is an exception. 184 00:29:31,311 --> 00:29:37,901 Across the planet, space for grasslands has been steadily disappearing. 185 00:29:38,902 --> 00:29:41,571 [huffs] 186 00:29:43,239 --> 00:29:48,203 A hundred and eighty years ago, herds of bison, millions strong, 187 00:29:48,787 --> 00:29:51,581 grazed the Great Plains of North America. 188 00:29:55,335 --> 00:30:00,089 They roamed across a prairie a hundred times larger than the Serengeti. 189 00:30:07,931 --> 00:30:10,683 This was the true wild west. 190 00:30:24,656 --> 00:30:26,366 [roaring] 191 00:30:26,783 --> 00:30:29,911 Every summer, the males roared their challenges 192 00:30:31,538 --> 00:30:34,415 and fought for possession of the females. 193 00:30:55,603 --> 00:31:00,108 As the rut intensified, the fights became more brutal. 194 00:31:34,017 --> 00:31:38,980 Today, however, most of the prairie is silent. 195 00:31:44,193 --> 00:31:47,363 Humans slaughtered the great herds. 196 00:31:51,117 --> 00:31:54,454 Less than 30,000 wild bison remain, 197 00:31:57,332 --> 00:32:01,085 and 90 percent of the prairie has been lost, 198 00:32:03,004 --> 00:32:05,298 most of it to agriculture. 199 00:32:29,447 --> 00:32:32,784 What we eat, and how we produce it, 200 00:32:33,493 --> 00:32:37,538 will determine the future of our planet's grasslands. 201 00:32:45,254 --> 00:32:49,550 Our past could show us how we can feed ourselves 202 00:32:49,926 --> 00:32:51,886 and still leave room for nature. 203 00:32:55,848 --> 00:33:01,396 The ancient hay meadows of Hungary, still farmed in the traditional way, 204 00:33:01,896 --> 00:33:05,316 provide habitats of extraordinary richness. 205 00:33:17,161 --> 00:33:19,372 Butterflies are abundant. 206 00:33:22,333 --> 00:33:27,797 One species has an almost unbelievably complex life cycle. 207 00:33:32,135 --> 00:33:33,845 The Alcon blue. 208 00:33:36,389 --> 00:33:41,978 Each female must mate and lay eggs on just one species of plant, 209 00:33:42,478 --> 00:33:43,563 the marsh gentian. 210 00:33:50,528 --> 00:33:53,072 The eggs soon hatch into caterpillars. 211 00:33:55,825 --> 00:34:00,246 High up on the plants, they're safe from predators below. 212 00:34:10,631 --> 00:34:14,677 But then, the caterpillars do something seemingly suicidal. 213 00:34:18,806 --> 00:34:23,478 They abseil down on threads of silk to the ground below... 214 00:34:25,313 --> 00:34:27,231 and into danger. 215 00:34:35,073 --> 00:34:38,284 They have no defense against the marauding ants, 216 00:34:38,367 --> 00:34:39,577 which carry them off. 217 00:34:44,248 --> 00:34:48,419 But this is exactly what the caterpillars need to happen. 218 00:34:51,214 --> 00:34:55,676 They're producing a scent like that emitted by an ant larva. 219 00:35:00,056 --> 00:35:03,768 The ants respond by taking them back to their nest. 220 00:35:11,150 --> 00:35:14,862 There, they deposit them in the colony's brood chamber. 221 00:35:17,365 --> 00:35:21,869 The purple-colored caterpillars, lying among the ants' own white larvae, 222 00:35:22,787 --> 00:35:25,206 give off just the right signals. 223 00:35:29,919 --> 00:35:32,380 And the nurse ants rush to feed them. 224 00:35:35,049 --> 00:35:36,300 But there is more. 225 00:35:38,010 --> 00:35:43,141 The caterpillars now start to mimic the sounds made by the queen ant, 226 00:35:46,018 --> 00:35:49,188 and, as a result, the ants treat them like royalty. 227 00:35:53,484 --> 00:35:54,944 If food gets short, 228 00:35:55,027 --> 00:35:58,990 the ants will even feed the caterpillars instead of their own young. 229 00:36:01,659 --> 00:36:06,622 They give them such quantities of food that the caterpillars grow hugely. 230 00:36:14,338 --> 00:36:19,886 And there, underground, the caterpillars feed and grow for nearly two years. 231 00:36:21,137 --> 00:36:27,351 Until, one day, there is nothing for the ants to feed. 232 00:36:30,229 --> 00:36:32,231 The caterpillars have pupated. 233 00:36:41,157 --> 00:36:42,408 But a few weeks later, 234 00:36:43,242 --> 00:36:46,913 out crawls an Alcon blue butterfly. 235 00:37:07,225 --> 00:37:09,185 Now, they begin to leave the nest 236 00:37:09,268 --> 00:37:13,522 that has been their home for the last 23 months. 237 00:37:31,082 --> 00:37:33,793 The young adult makes its way out of the nest 238 00:37:34,293 --> 00:37:35,795 and clambers up a grass stem. 239 00:37:36,545 --> 00:37:41,509 Its wings expand as it prepares to fly off and find a mate. 240 00:37:46,097 --> 00:37:50,476 This complex life may be laborsaving for the butterfly, 241 00:37:50,977 --> 00:37:52,353 but it's risky. 242 00:37:54,480 --> 00:37:57,858 If anything happened to the ants or to the gentian, 243 00:37:58,234 --> 00:38:01,362 the Alcon blue would become extinct. 244 00:38:16,711 --> 00:38:19,797 Only tiny fragments of these ancient meadows 245 00:38:19,880 --> 00:38:21,173 are left in Europe. 246 00:38:24,051 --> 00:38:26,679 But beyond them to the east, 247 00:38:27,054 --> 00:38:33,269 once stretched grasslands that extended for a fifth of the way around the world, 248 00:38:33,811 --> 00:38:35,896 from Romania to China. 249 00:38:58,919 --> 00:39:03,215 Here, there are places where, for mile after endless mile, 250 00:39:03,841 --> 00:39:06,344 there are no roads or fences. 251 00:39:11,599 --> 00:39:16,437 Here, where there are no trees, eagles nest on the ground. 252 00:39:24,403 --> 00:39:30,326 Once, these eagles would have preyed on antelope that numbered in millions. 253 00:39:35,623 --> 00:39:37,583 And some are still here. 254 00:39:38,959 --> 00:39:43,756 These are saiga, antelope that live nowhere else in the world. 255 00:39:46,008 --> 00:39:49,261 Their extraordinary noses are specially adapted 256 00:39:49,470 --> 00:39:53,265 to filter out the dust kicked up by the immense herds 257 00:39:53,432 --> 00:39:54,600 that once lived here. 258 00:39:58,312 --> 00:40:00,815 Now, they're critically endangered. 259 00:40:01,649 --> 00:40:06,112 Poaching and the loss of habitat have had a devastating impact on them. 260 00:40:09,448 --> 00:40:13,494 But conservation efforts have recently started to make a difference. 261 00:40:16,038 --> 00:40:20,668 There is still hope for these extraordinary plains dwellers. 262 00:40:28,467 --> 00:40:33,180 And the proof of this can be found further east, in Mongolia, 263 00:40:33,806 --> 00:40:37,476 where the grasslands still remain largely intact. 264 00:40:43,107 --> 00:40:45,693 These are Przewalski’s horses. 265 00:40:47,111 --> 00:40:50,197 Fifty years ago, they were extinct in the wild, 266 00:40:51,198 --> 00:40:54,076 but a few adults survived in captivity. 267 00:41:00,249 --> 00:41:03,669 Careful breeding from 12 of them increased their numbers 268 00:41:03,919 --> 00:41:06,964 until there were sufficient to release on the plains. 269 00:41:09,758 --> 00:41:11,886 These are their descendants. 270 00:41:22,021 --> 00:41:24,940 A stallion protects each harem. 271 00:41:29,570 --> 00:41:34,283 They must be vigilant, and they race to defend their herd... 272 00:41:43,501 --> 00:41:46,629 or chase off bachelors trying to lure away a mare. 273 00:42:01,268 --> 00:42:03,687 With their numbers now topping 300, 274 00:42:05,105 --> 00:42:08,651 the future for these wild horses looks more secure. 275 00:42:12,863 --> 00:42:14,990 Their recovery was only possible 276 00:42:15,407 --> 00:42:20,663 because the vast Mongolian steppe still remains largely untouched. 277 00:42:33,217 --> 00:42:39,306 These grasses are some of the tallest to be found anywhere on our planet. 278 00:42:42,726 --> 00:42:47,314 They're so tall they can conceal elephants. 279 00:42:56,365 --> 00:43:00,286 They make the giants that live among them seem small. 280 00:43:19,305 --> 00:43:21,223 A last hiding place 281 00:43:21,307 --> 00:43:25,686 for the highly endangered greater one-horned rhino. 282 00:43:36,488 --> 00:43:37,990 This is India, 283 00:43:39,742 --> 00:43:42,286 one of the most populous countries on Earth. 284 00:43:45,289 --> 00:43:51,420 Yet here there is a great determination to protect these crucial grasslands. 285 00:44:06,602 --> 00:44:08,145 What must it be like 286 00:44:08,395 --> 00:44:12,191 to live in this dense, claustrophobic world? 287 00:44:21,909 --> 00:44:25,996 Just moving about could mean walking into danger. 288 00:44:41,679 --> 00:44:46,308 The grasses conceal tigers. 289 00:44:57,069 --> 00:45:00,572 Stripes and shadows blend. 290 00:45:14,545 --> 00:45:18,924 Long grass may hide a tigress from her prey, 291 00:45:24,972 --> 00:45:28,809 but it also hides the prey from her. 292 00:45:37,234 --> 00:45:40,446 She must get within 20 meters of it. 293 00:45:46,618 --> 00:45:51,540 And she must always know exactly where the prey are hidden. 294 00:46:42,800 --> 00:46:44,593 She may have lost them. 295 00:47:06,907 --> 00:47:09,117 She risks a look. 296 00:47:12,996 --> 00:47:14,122 [bleats] 297 00:47:17,543 --> 00:47:19,545 [bleating resonates] 298 00:47:38,313 --> 00:47:44,403 Every deer around now knows exactly where the tiger is. 299 00:47:58,750 --> 00:48:02,713 Others have heard the signal that announced her failure. 300 00:48:11,847 --> 00:48:12,806 Her cubs. 301 00:48:22,566 --> 00:48:25,235 She had left them hidden in the grass. 302 00:48:28,614 --> 00:48:29,948 [growling] 303 00:48:39,625 --> 00:48:41,710 In the last hundred years, 304 00:48:42,085 --> 00:48:47,799 the number of wild tigers has declined by over 95 percent. 305 00:48:51,553 --> 00:48:52,971 But here in India, 306 00:48:53,722 --> 00:48:56,433 despite the enormous pressure from poaching, 307 00:48:57,517 --> 00:48:59,561 and a growing human population, 308 00:49:01,063 --> 00:49:04,066 tiger numbers are actually increasing. 309 00:49:13,450 --> 00:49:18,580 Protect the precious space that grasslands and deserts provide, 310 00:49:21,166 --> 00:49:24,169 and the animals will bounce back. 311 00:49:40,519 --> 00:49:42,729 Please visit ourplanet.com 312 00:49:43,063 --> 00:49:47,901 to discover what we need to do now to protect wild grasslands. 313 00:49:49,945 --> 00:49:55,826 ♪ I can hear the whole world Singing together ♪ 314 00:49:58,453 --> 00:50:04,418 ♪ I can hear the whole world Say it's now or never ♪ 315 00:50:07,212 --> 00:50:11,508 ♪ 'Cause it's not too late If we change our ways ♪ 316 00:50:11,591 --> 00:50:15,053 ♪ And connect the dots to our problems ♪ 317 00:50:15,470 --> 00:50:21,143 ♪ I can hear the whole world Say we're in this together ♪ 318 00:50:21,601 --> 00:50:23,311 ♪ We're in this together ♪