1 00:00:05,438 --> 00:00:09,431 The red kangaroo powerful, comical 2 00:00:09,542 --> 00:00:14,673 engaging this is the desert dwelling symbol of Australia 3 00:00:16,583 --> 00:00:20,781 But kangaroos can be found almost anywhere down under 4 00:00:22,288 --> 00:00:24,085 They're up in trees 5 00:00:26,493 --> 00:00:28,256 ...on the forest floor 6 00:00:29,396 --> 00:00:31,830 ...and can even be found on the rocks 7 00:00:33,233 --> 00:00:35,997 But all the kangaroos face danger 8 00:00:43,076 --> 00:00:45,977 This is the story of a mother and her Joey 9 00:00:46,079 --> 00:00:48,309 and how he comes into his own 10 00:00:48,415 --> 00:00:51,111 There is tenderness here in the desert 11 00:00:51,217 --> 00:00:54,118 and the harsh reality of survival 12 00:00:57,357 --> 00:01:01,293 Persecuted by some, revered by others 13 00:01:01,394 --> 00:01:05,763 the red kangaroo has astonishing tales to tell 14 00:01:54,114 --> 00:01:58,881 This is Australia, the driest inhabited continent on earth 15 00:02:00,186 --> 00:02:01,653 Sixty million years ago 16 00:02:01,754 --> 00:02:05,690 this land began its final break from the rest of the world 17 00:02:05,792 --> 00:02:08,955 evolving along a path all its own 18 00:02:09,696 --> 00:02:13,962 Today, its vast, open interior lies naked in the sun 19 00:02:14,067 --> 00:02:16,968 a land from another place in time 20 00:02:20,673 --> 00:02:23,665 It's unforgiving here, not for the faint of heart 21 00:02:23,776 --> 00:02:27,177 and survival means marching to a different beat 22 00:02:29,315 --> 00:02:33,649 But this dry, hostile landscape is not devoid of life 23 00:02:33,753 --> 00:02:37,621 it's home to one of the most astonishing creatures on earth 24 00:02:38,424 --> 00:02:41,518 angaroos live in New Guinea and Australia 25 00:02:41,628 --> 00:02:44,290 yet their name is known far and wide 26 00:02:44,397 --> 00:02:47,662 But while the world may know a 'roo when it sees one 27 00:02:47,767 --> 00:02:51,100 to science, they're still something of a riddle 28 00:02:52,505 --> 00:02:55,702 You might think nothing this big is supposed to hop 29 00:02:55,808 --> 00:02:59,005 But kangaroos do it with speed and agility 30 00:02:59,112 --> 00:03:02,206 Six-foot marvels of efficient locomotion 31 00:03:02,315 --> 00:03:04,283 they emerged from the rain forest 32 00:03:04,384 --> 00:03:08,480 then spread over a continent while adapting to desert heat 33 00:03:08,588 --> 00:03:11,682 This is the story of the red kangaroo 34 00:03:11,791 --> 00:03:15,852 an amazing tale from the land down under 35 00:03:24,771 --> 00:03:26,636 It's summertime in the outback 36 00:03:26,739 --> 00:03:29,708 And the 'roos can be found where there is food 37 00:03:29,809 --> 00:03:33,905 Most red kangaroos are red in name only the females 38 00:03:34,013 --> 00:03:36,311 and youngsters tend to be gray 39 00:03:38,718 --> 00:03:41,380 The 'roos look like they're congregating in groups 40 00:03:41,487 --> 00:03:43,284 but it's food, not the company 41 00:03:43,389 --> 00:03:45,050 that draws them together 42 00:03:52,232 --> 00:03:53,529 For kangaroos 43 00:03:53,633 --> 00:03:57,535 the most powerful social bond is between a mother and her young 44 00:03:57,637 --> 00:04:00,504 And like many of Australia's astonishing mammals 45 00:04:00,607 --> 00:04:02,905 joeys are raised in a pouch 46 00:04:03,009 --> 00:04:06,206 They spend the first eight months of their fascinating lives 47 00:04:06,312 --> 00:04:08,746 living in a built-in nursery 48 00:04:18,691 --> 00:04:22,491 This youngster needs a taste of life outside the pouch 49 00:04:23,162 --> 00:04:26,097 his mother's nearly bursting at the seams 50 00:04:39,412 --> 00:04:42,472 A wedgetailed eagle waits for his debut 51 00:04:42,582 --> 00:04:45,210 but it's not here to wish him good luck 52 00:04:46,653 --> 00:04:48,780 Joey doesn't care who's in attendance 53 00:04:48,888 --> 00:04:50,879 He's not in a hurry to come out 54 00:04:50,990 --> 00:04:53,982 His mother has other ideas 55 00:05:02,702 --> 00:05:05,262 She dumps him out in a tangled heap 56 00:05:05,371 --> 00:05:08,272 For the first time he sets foot in the world 57 00:05:08,374 --> 00:05:11,639 But the place is not to his liking 58 00:05:16,916 --> 00:05:19,476 The eagle watches his entrance and exit 59 00:05:19,585 --> 00:05:22,645 It's following the show with keen eyes 60 00:05:26,059 --> 00:05:29,051 A six-foot wingspan and powerful talons 61 00:05:29,162 --> 00:05:32,063 make the wedgetail a dangerous observer 62 00:05:39,339 --> 00:05:42,069 For young kangaroos that are clumsy or careless 63 00:05:42,175 --> 00:05:44,769 death can descend from the sky 64 00:05:53,619 --> 00:05:56,213 Shade is precious in the desert heat 65 00:05:56,322 --> 00:05:59,291 To cool themselves, kangaroos lick their skin 66 00:05:59,392 --> 00:06:02,259 where blood vessels run close to the surface 67 00:06:11,237 --> 00:06:14,138 Getting comfortable can be a bigger problem especially 68 00:06:14,240 --> 00:06:16,265 with a pouch full to the brim 69 00:06:20,546 --> 00:06:24,209 A joey's world revolves around its mother relationships 70 00:06:24,317 --> 00:06:26,649 don't get much closer than this 71 00:06:31,190 --> 00:06:33,158 The kangaroos languish 72 00:06:33,259 --> 00:06:36,751 lt'll be nightfall before there's any relief from the heat 73 00:06:40,099 --> 00:06:43,626 This old male decides to lay down afternoon stakes 74 00:06:43,736 --> 00:06:47,137 he's digging a hollow to rest his giant hips 75 00:06:52,678 --> 00:06:56,808 For the joey, a tail in the face is worth the security of the pouch 76 00:06:56,916 --> 00:06:58,383 He's safe from predators 77 00:06:58,484 --> 00:07:01,351 and free to keep an eye on the goings on 78 00:07:01,454 --> 00:07:03,422 His mother's portable nursery 79 00:07:03,523 --> 00:07:05,787 the hallmark of most marsupials 80 00:07:05,892 --> 00:07:08,884 originated in the dinosaur age 81 00:07:11,431 --> 00:07:16,300 One hundred million years ago rain forest blanketed this land 82 00:07:20,239 --> 00:07:23,640 Only small slivers of green still remain 83 00:07:23,743 --> 00:07:28,476 lush shrinking Edens clinging to an island continent's edges 84 00:07:41,594 --> 00:07:44,392 In places no more than 30 miles wide 85 00:07:44,497 --> 00:07:47,523 these ancient rain forests are endangered 86 00:07:47,633 --> 00:07:49,567 But it was in places like these 87 00:07:49,669 --> 00:07:53,730 that tiny marsupials first made their Australian appearance 88 00:07:55,641 --> 00:07:58,132 Exactly how they lived in this isolated world 89 00:07:58,244 --> 00:08:00,178 is a subject for debate 90 00:08:01,013 --> 00:08:04,540 But there's no dispute that evidence of marsupial origins 91 00:08:04,650 --> 00:08:07,084 can still be found here today 92 00:08:20,500 --> 00:08:24,197 The kangaroo's ancestors started out in trees much 93 00:08:24,303 --> 00:08:26,863 like this mountain brushtailed possum 94 00:08:26,973 --> 00:08:29,908 which moves through the branches on all fours 95 00:08:35,548 --> 00:08:38,779 The first marsupials did raise their young in a pouch 96 00:08:38,885 --> 00:08:42,878 but a tree-bound existence made them different in many ways 97 00:08:48,794 --> 00:08:52,753 angaroo ancestors were probably good climbers with long toes 98 00:08:52,865 --> 00:08:55,663 sharp claws, and prehensile tails 99 00:09:00,339 --> 00:09:02,705 They may have started out as leaf-eaters 100 00:09:02,808 --> 00:09:06,073 but leaves are low in nutrition and difficult to digest 101 00:09:06,178 --> 00:09:09,773 So perhaps Joey's ancestors ventured out of the trees 102 00:09:09,882 --> 00:09:11,907 in search of sweeter stuff 103 00:09:19,492 --> 00:09:22,461 The dinosaurs were gone by then but other 104 00:09:22,562 --> 00:09:24,996 deadly reptiles remained 105 00:09:32,805 --> 00:09:35,740 This carpet python is looking for a meal 106 00:09:35,841 --> 00:09:39,072 And possums have long been a favorite 107 00:09:49,255 --> 00:09:53,021 The possum's keen hearing is no match for such stealth 108 00:10:11,177 --> 00:10:14,340 The possum escapes with little more than a good scare 109 00:10:14,447 --> 00:10:17,712 but next time, its luck may not hold 110 00:10:30,563 --> 00:10:32,724 It was 15 million years ago 111 00:10:32,832 --> 00:10:37,132 when the kangaroo's ancestors moved down to the forest floor 112 00:10:40,373 --> 00:10:42,933 Here beneath the canopy shaded from heat 113 00:10:43,042 --> 00:10:45,738 many animals are active all day 114 00:10:53,185 --> 00:10:55,653 And in this rich, green, jungle store 115 00:10:55,755 --> 00:10:58,417 there's something for everyone to eat 116 00:11:05,698 --> 00:11:08,531 The musky rat-kangaroo is the smallest 117 00:11:08,634 --> 00:11:12,126 and most primitive of Joey's living relatives 118 00:11:17,777 --> 00:11:19,574 Weighing in at only one pound 119 00:11:19,679 --> 00:11:22,978 it's the only kangaroo that doesn't hop 120 00:11:24,116 --> 00:11:26,983 Rat kangaroos live mainly on the ground 121 00:11:27,086 --> 00:11:28,986 They don't use those tails for climbing 122 00:11:29,088 --> 00:11:31,955 but for gathering nest-building materials 123 00:11:35,428 --> 00:11:37,589 And those long, grasping toes are great 124 00:11:37,697 --> 00:11:41,360 for handling a fruit and insect based diet 125 00:12:00,219 --> 00:12:02,881 Another ancient denizen of the forest arrives 126 00:12:02,988 --> 00:12:06,617 and the little rat kangaroo beats a hasty retreat 127 00:12:08,661 --> 00:12:11,027 The cassowary is an unusual animal 128 00:12:11,130 --> 00:12:14,224 that has changed little in millions of years 129 00:12:20,506 --> 00:12:24,602 These large, flightless birds can be over five feet tall 130 00:12:24,710 --> 00:12:27,406 and it's the males that look after the young 131 00:12:32,985 --> 00:12:36,921 Shy birds, these giants shrink from confrontation 132 00:12:37,022 --> 00:12:39,456 unless there's a threat to their young 133 00:12:39,558 --> 00:12:41,526 Using their huge claws 134 00:12:41,627 --> 00:12:45,654 cassowaries have been known to kill humans in defense of their chicks 135 00:12:46,632 --> 00:12:49,465 But this primeval world where kangaroos evolved 136 00:12:49,568 --> 00:12:52,935 has been disappearing from Australia for millennia 137 00:12:53,038 --> 00:12:57,634 And most kangaroos have long since adapted to harsher stuff 138 00:13:00,513 --> 00:13:04,381 Out in the bush, the days of high summer have passed 139 00:13:11,657 --> 00:13:14,820 The red kangaroos are more active during the day 140 00:13:19,865 --> 00:13:24,097 But our joey still spends most of his time in the pouch 141 00:13:29,508 --> 00:13:33,205 Older ones are venturing out to enjoy the cooler weather 142 00:13:46,559 --> 00:13:49,221 Red kangaroos are affectionate mothers 143 00:13:49,328 --> 00:13:50,955 She grooms him every day 144 00:13:51,063 --> 00:13:54,055 always keeping her eyes peeled for danger 145 00:13:54,166 --> 00:13:59,001 She knows he's still small enough to lure unwanted attention 146 00:14:00,739 --> 00:14:02,764 There is reason for her caution 147 00:14:02,875 --> 00:14:05,571 The wedgetailed eagle is nearby 148 00:14:25,631 --> 00:14:26,859 When the bird takes off 149 00:14:26,966 --> 00:14:30,163 mothers fold their joeys back into the pouch 150 00:14:35,441 --> 00:14:37,409 With no prospects in the offing 151 00:14:37,509 --> 00:14:41,809 the eagle returns to her nest to see to her own family business 152 00:14:51,423 --> 00:14:53,357 Her chicks are voracious eaters 153 00:14:53,459 --> 00:14:55,393 They love kangaroo meat 154 00:14:55,494 --> 00:14:58,520 But there's competition in the predatory arena 155 00:14:58,631 --> 00:15:01,065 Australia's wild dog, the dingo 156 00:15:01,166 --> 00:15:04,363 also lurks wherever kangaroos gather 157 00:15:07,673 --> 00:15:09,937 So the eagle must set out again 158 00:15:12,411 --> 00:15:15,175 Wedgetails are partial to young joeys 159 00:15:15,281 --> 00:15:18,478 but won't take on protective mothers to get at them 160 00:15:22,721 --> 00:15:26,054 Soon, he'll be as much of a handful as the other joey 161 00:15:26,158 --> 00:15:28,319 who's already out and about 162 00:15:37,436 --> 00:15:39,961 Once again, Joey's mother senses trouble 163 00:15:40,072 --> 00:15:43,007 And her instincts are usually on the mark 164 00:15:50,950 --> 00:15:54,249 Not far off, the eagle has claimed a young kangaroo 165 00:15:54,353 --> 00:15:57,254 and Joey's mother decides to depart 166 00:16:07,733 --> 00:16:10,497 But wedgetailed eagles have families to feed as well 167 00:16:10,602 --> 00:16:13,537 And these two are anxious to eat 168 00:16:21,480 --> 00:16:23,846 She brings them torn off slivers of meat 169 00:16:23,949 --> 00:16:27,476 gently feeding the chicks from a fearsome beak 170 00:16:33,625 --> 00:16:36,753 Nothing much has changed for the rest of the kangaroos 171 00:16:36,862 --> 00:16:38,762 The young males play 172 00:16:42,234 --> 00:16:44,099 the adults relax 173 00:16:51,377 --> 00:16:54,676 Many settle in for a regular daytime snooze 174 00:16:59,451 --> 00:17:01,578 But Joey's got other ideas 175 00:17:14,733 --> 00:17:18,863 He's up now, so his mother must rouse herself to stand guard 176 00:17:18,971 --> 00:17:21,269 Joey looks big enough to be weaned 177 00:17:21,373 --> 00:17:25,776 He has taken to sticking just his head in the pouch sometimes nursing 178 00:17:25,878 --> 00:17:28,073 sometimes only for comfort 179 00:17:31,183 --> 00:17:33,811 The kangaroos are having a quiet afternoon 180 00:17:33,919 --> 00:17:37,446 For the most part, they just sit around or dust-bathe 181 00:17:54,540 --> 00:17:55,438 For the first time 182 00:17:55,541 --> 00:17:59,807 Joey's mother allows him to wander more than an arm's length away 183 00:18:02,781 --> 00:18:04,772 He's always been a fine scratcher 184 00:18:04,883 --> 00:18:08,375 But he's still an uncertain walker at best 185 00:18:16,528 --> 00:18:18,689 angaroos are built for hopping 186 00:18:18,797 --> 00:18:21,994 They look ungainly moving at slower speeds 187 00:18:27,606 --> 00:18:30,837 Young males play-fight for hours each day 188 00:18:35,581 --> 00:18:38,311 This comical pair probably won't hurt each other 189 00:18:38,417 --> 00:18:42,410 but someday, they may fight in earnest for mating rights 190 00:18:53,599 --> 00:18:54,861 Though he's still nursing 191 00:18:54,967 --> 00:18:57,993 Joey wants to try a mouthful of grass 192 00:18:58,904 --> 00:19:01,634 and gets a thorn in the nose for his trouble 193 00:19:07,312 --> 00:19:10,713 It will be a while before he's tuned to this landscape 194 00:19:10,816 --> 00:19:13,512 but he just learned a valuable lesson 195 00:19:18,524 --> 00:19:20,788 He turns to a more familiar source 196 00:19:20,893 --> 00:19:23,919 But Mother isn't her usual welcoming self 197 00:19:30,435 --> 00:19:33,199 She controls her pouch with powerful muscles 198 00:19:33,305 --> 00:19:35,500 and easily ejects her joey 199 00:19:35,607 --> 00:19:37,837 His weaning has begun 200 00:19:37,943 --> 00:19:42,175 From now on, he'll do more of his feeding from outside 201 00:19:49,688 --> 00:19:52,885 In time, Joey will join these sparring matches 202 00:19:52,991 --> 00:19:54,652 Using their tails for balance 203 00:19:54,760 --> 00:19:57,126 the young kangaroos stand upright 204 00:19:57,229 --> 00:20:00,926 wrestling with forearms and pawing at heads and shoulders 205 00:20:01,033 --> 00:20:02,227 They throw their heads back 206 00:20:02,334 --> 00:20:04,962 protecting themselves from sharp claws 207 00:20:19,318 --> 00:20:22,151 A passing eagle, headed back to a recent kill 208 00:20:22,254 --> 00:20:24,518 stops to survey the scene 209 00:20:30,562 --> 00:20:34,430 Her arrival sends Joey diving head first into the pouch 210 00:20:46,445 --> 00:20:48,743 All the kangaroos are wary 211 00:20:50,549 --> 00:20:52,210 But with hungry chicks to feed 212 00:20:52,317 --> 00:20:54,979 the eagle returns to the dead joey 213 00:20:55,087 --> 00:20:56,884 Apart from human hunters 214 00:20:56,989 --> 00:21:02,222 only the eagle and the dingo now regularly pursue red kangaroos 215 00:21:07,532 --> 00:21:13,402 But huge lizards and even marsupial lions may have fed on Joey's ancestors 216 00:21:13,505 --> 00:21:16,633 Giants once roamed this landscape 217 00:21:19,511 --> 00:21:21,604 Their legacy today is a ferocious 218 00:21:21,713 --> 00:21:23,908 flesh-eating marsupial now found 219 00:21:24,016 --> 00:21:28,180 only on Australia's companion island Tasmania 220 00:21:30,289 --> 00:21:31,916 Not known for their table manners 221 00:21:32,024 --> 00:21:34,652 Tasmanian devils snarl and snap even 222 00:21:34,760 --> 00:21:36,751 when there's plenty to go around 223 00:21:44,136 --> 00:21:47,037 The devils are gorging on a mid-sized kangaroo 224 00:21:47,139 --> 00:21:49,073 usually called a wallaby 225 00:21:49,174 --> 00:21:51,972 And the ruckus alerts another kangaroo cousin 226 00:21:52,077 --> 00:21:54,511 that it's time to take cover 227 00:22:09,461 --> 00:22:12,259 This little hopper is a Tasmanian bettong 228 00:22:12,364 --> 00:22:14,696 Her youngster, too large for the pouch 229 00:22:14,800 --> 00:22:17,394 keeps to the nest when she forages 230 00:22:34,586 --> 00:22:36,486 The smaller devil, a female 231 00:22:36,588 --> 00:22:40,524 also has young who have grown too large for her pouch 232 00:22:41,493 --> 00:22:43,085 From the safety of a hollow log 233 00:22:43,195 --> 00:22:46,323 the young ones wait impatiently for their dinner 234 00:23:01,646 --> 00:23:03,705 As quiet settles on the forest 235 00:23:03,815 --> 00:23:06,750 the sprightly bettongs get back to business 236 00:23:08,620 --> 00:23:12,181 Hopping probably originated in kangaroos like these: 237 00:23:12,290 --> 00:23:14,758 Perhaps the motion confused predators 238 00:23:14,860 --> 00:23:18,159 giving the small 'roos a chance at escape 239 00:23:21,900 --> 00:23:23,458 But it was on the open plains 240 00:23:23,568 --> 00:23:25,695 that the kangaroos' singular way of getting 241 00:23:25,804 --> 00:23:28,637 about probably came into its own 242 00:23:32,778 --> 00:23:36,976 Scientists know that hopping can be far more efficient than running 243 00:23:43,455 --> 00:23:45,116 When a kangaroo hits the ground 244 00:23:45,223 --> 00:23:49,057 its hind legs store energy like compacted springs 245 00:23:49,161 --> 00:23:53,621 The energy helps propel the kangaroo upwards for the next hop 246 00:23:55,667 --> 00:23:59,626 The motion also accordions the 'roo's lungs in and out 247 00:23:59,738 --> 00:24:02,935 so the animal wastes no effort while breathing 248 00:24:05,210 --> 00:24:08,941 Scientists haven't solved the mystery of how kangaroos went 249 00:24:09,047 --> 00:24:11,174 from four legs to two 250 00:24:11,283 --> 00:24:15,310 But the Aborigines have long had their own explanations 251 00:24:26,064 --> 00:24:27,258 One ancient myth holds 252 00:24:27,365 --> 00:24:30,698 that while making its four legged way through the brush 253 00:24:30,802 --> 00:24:34,397 a kangaroo heard sounds it had never heard before 254 00:24:41,179 --> 00:24:43,079 It followed the enchanting music 255 00:24:43,181 --> 00:24:46,173 until it came upon human beings singing 256 00:24:46,284 --> 00:24:48,718 and dancing on two feet 257 00:24:53,558 --> 00:24:56,459 The kangaroo stood up on feet of its own 258 00:24:56,561 --> 00:24:59,462 then began to copy their movements 259 00:25:03,435 --> 00:25:05,494 It burst from hiding in a frenzy 260 00:25:05,604 --> 00:25:08,869 intending to join the ceremony around the fire 261 00:25:11,743 --> 00:25:12,937 But the people were angry 262 00:25:13,044 --> 00:25:16,673 They fell upon the proud animal determined that it should die 263 00:25:16,781 --> 00:25:20,046 Then a spirit voice boomed from the heavens 264 00:25:20,151 --> 00:25:24,679 telling them to release the kangaroo and cherish him as a brother 265 00:25:29,394 --> 00:25:32,124 While hopping earned kangaroos a special place 266 00:25:32,230 --> 00:25:34,391 in the Aboriginal Dreamtime 267 00:25:34,499 --> 00:25:38,799 it also propelled them into some of the most unlikely places 268 00:25:42,774 --> 00:25:44,867 This beautiful little kangaroo 269 00:25:44,976 --> 00:25:47,740 is a yellow footed rock wallaby 270 00:25:50,615 --> 00:25:52,583 They show off their mountaineering skills 271 00:25:52,684 --> 00:25:57,053 wherever cliffs jut out of Australia's vast desert land 272 00:26:33,959 --> 00:26:35,722 Living in large colonies 273 00:26:35,827 --> 00:26:39,285 the rock wallabies shelter in caves along the rocks 274 00:26:39,397 --> 00:26:43,299 Shady crevices harbor vegetation year-round 275 00:26:47,372 --> 00:26:49,135 But water can be a problem 276 00:26:49,240 --> 00:26:53,404 To get it, they sometimes descend to where rain collects below 277 00:26:55,914 --> 00:26:59,281 Wedgetailed eagles prey on rock wallabies, too 278 00:27:01,786 --> 00:27:06,018 Youngsters waiting on the cliffs sometimes wander into the open 279 00:27:14,599 --> 00:27:16,692 Only adults descend to drink 280 00:27:16,801 --> 00:27:20,862 Young ones too big for the pouch must stay behind 281 00:27:26,011 --> 00:27:27,035 In just a few minutes 282 00:27:27,145 --> 00:27:29,841 she'll drink a tenth of her weight in water 283 00:27:29,948 --> 00:27:32,576 Then she'll hurry back to her joey 284 00:27:47,399 --> 00:27:50,630 Thirsty joeys drink straight from mother's mouth 285 00:28:01,012 --> 00:28:03,105 Like their big red cousins on the plains 286 00:28:03,214 --> 00:28:06,843 young rock wallabies spend hours in mock battle 287 00:28:12,624 --> 00:28:14,091 And while the children play 288 00:28:14,192 --> 00:28:16,854 some adults engage in courtship 289 00:28:21,566 --> 00:28:25,297 But this male's gentle ardor is getting him nowhere 290 00:28:32,944 --> 00:28:35,674 The children, oblivious, play on 291 00:28:41,820 --> 00:28:43,515 He's nothing if not persistent 292 00:28:43,621 --> 00:28:45,646 But she'll have none of it 293 00:29:08,413 --> 00:29:12,281 Other adults bask lazily in the early morning light 294 00:29:21,459 --> 00:29:24,758 Long eyelashes my help screen out the harsh sun 295 00:29:24,863 --> 00:29:26,490 and discourage flies 296 00:29:36,641 --> 00:29:39,303 Before retreating into the cool caves for the day 297 00:29:39,410 --> 00:29:41,435 the wallabies sunbathe 298 00:29:54,726 --> 00:29:56,694 As the sun warms the cliff face 299 00:29:56,795 --> 00:29:59,355 they head for their midday hideouts 300 00:30:05,403 --> 00:30:08,566 The eagle will have no more chances at them today 301 00:30:08,673 --> 00:30:11,437 It wheels and heads for the plains 302 00:30:11,543 --> 00:30:13,977 and its larger kangaroo fare 303 00:30:22,587 --> 00:30:24,578 Joey's growing like a desert weed 304 00:30:24,689 --> 00:30:27,021 and sporting a much redder coat 305 00:30:32,497 --> 00:30:35,330 Each day he spends less time in the pouch 306 00:30:35,433 --> 00:30:38,402 and no longer clings to his mother when out 307 00:30:41,873 --> 00:30:44,171 This is a dangerous time for Joey 308 00:30:44,275 --> 00:30:47,472 He's too big for his mother to carry if she has to run away 309 00:30:47,579 --> 00:30:50,673 and reason to run is never far off 310 00:30:53,284 --> 00:30:55,809 A hungry dingo is slinking about 311 00:30:55,920 --> 00:30:58,480 while Joey's busy grooming himself 312 00:31:13,938 --> 00:31:16,498 His mother calls Joey to her side 313 00:31:19,410 --> 00:31:23,039 Neither one sees the dingo approaching through the brush 314 00:31:35,593 --> 00:31:38,426 For a moment, a young male freezes 315 00:31:39,497 --> 00:31:41,397 His panic proves contagious 316 00:31:41,499 --> 00:31:44,093 Mother and Joey make their getaway too 317 00:31:57,815 --> 00:32:00,375 The dingo's no slouch when it comes to speed 318 00:32:00,451 --> 00:32:03,943 but the 'roos reach 35 miles per hour 319 00:32:12,597 --> 00:32:14,929 Dingoes have better luck hunting in packs 320 00:32:15,033 --> 00:32:17,126 when they're after large kangaroos 321 00:32:17,235 --> 00:32:19,135 But when smaller game are plentiful 322 00:32:19,237 --> 00:32:21,102 they tend to hunt alone 323 00:32:24,442 --> 00:32:26,501 Safely away from the wild dog 324 00:32:26,611 --> 00:32:30,012 Mother lets Joey back into the comforting pouch 325 00:32:37,555 --> 00:32:41,321 Nearby, a big male paces nervously 326 00:32:42,627 --> 00:32:45,494 He's caught the scent of yet another danger 327 00:32:49,534 --> 00:32:51,092 Drifting smoke 328 00:32:58,776 --> 00:33:03,179 Again, the action of one kangaroo triggers the flight of others 329 00:33:03,281 --> 00:33:05,681 This time they've been frightened by fire 330 00:33:05,783 --> 00:33:07,683 and they're racing to get away 331 00:33:19,364 --> 00:33:22,424 But this is no wildfire lt' a weapon 332 00:33:26,504 --> 00:33:30,702 The Aborigines have been using fire to hunt for thousands of years 333 00:33:33,378 --> 00:33:37,940 They are after a favorite delicacy a lizard called a goanna 334 00:33:54,232 --> 00:33:57,258 Some seek refuge from the flame in trees 335 00:33:58,403 --> 00:34:00,394 others go underground 336 00:34:09,414 --> 00:34:12,611 Here, women use sticks to locate escape tunnels 337 00:34:12,717 --> 00:34:16,175 then unearth the lizards using tin cans 338 00:34:24,729 --> 00:34:28,324 A goanna for the barbie is reason for celebration 339 00:34:28,433 --> 00:34:31,231 but these old ways are disappearing 340 00:34:37,909 --> 00:34:41,345 Today fewer Aborigines use fire to hunt and 341 00:34:41,446 --> 00:34:45,405 ironically, some kangaroos are paying the price 342 00:34:45,516 --> 00:34:49,452 The little rufus-hair wallaby depends on spinifex bushes 343 00:34:49,554 --> 00:34:51,351 that the Aborigines burn 344 00:34:51,456 --> 00:34:54,186 It needs their fires to thrive 345 00:35:03,401 --> 00:35:05,892 They use the old bushes for shelter 346 00:35:06,003 --> 00:35:09,700 But fire promotes the new growth that feeds the wallaby 347 00:35:09,807 --> 00:35:12,367 and these little spinifex mice 348 00:35:18,416 --> 00:35:21,112 The wallaby eats the bushes' young leaves 349 00:35:26,124 --> 00:35:28,217 The mice take the seeds 350 00:35:37,068 --> 00:35:39,628 The wallaby burrows into older bushes 351 00:35:39,737 --> 00:35:42,262 which bristle with spiky defenses 352 00:35:42,373 --> 00:35:45,365 But these thorny refuges have been no match 353 00:35:45,476 --> 00:35:48,445 against the upheaval of the last two centuries 354 00:35:54,552 --> 00:35:57,180 Since Europeans arrived in 1788 355 00:35:57,288 --> 00:36:02,351 almost half of Australia's kangaroo species have been declared extinct 356 00:36:02,460 --> 00:36:05,224 endangered, or vulnerable 357 00:36:06,197 --> 00:36:09,428 The whites brought foreign animals by the boatload 358 00:36:20,545 --> 00:36:23,343 They converted vast areas of land to grazing 359 00:36:23,447 --> 00:36:25,938 changing the landscape forever 360 00:36:33,257 --> 00:36:35,487 Unlike the soft-footed kangaroos 361 00:36:35,593 --> 00:36:40,189 hard-hooved sheep and cattle wore away the desert scrub and soil 362 00:36:40,298 --> 00:36:43,995 Livestock paths quickly eroded into ravines 363 00:36:44,101 --> 00:36:46,797 pastures became wastelands 364 00:36:56,881 --> 00:36:59,475 Rabbits, introduced for the benefit of hunters 365 00:36:59,584 --> 00:37:01,142 bred out of control 366 00:37:01,252 --> 00:37:05,188 Miles of fences went up in a vain attempt to contain them 367 00:37:05,289 --> 00:37:09,248 Today, those same fences bewilder migrating herds of 368 00:37:09,360 --> 00:37:11,590 native animals like the emu 369 00:37:13,764 --> 00:37:17,632 Inevitably, rats and mice accompanied the Europeans 370 00:37:17,735 --> 00:37:20,135 as did the domestic cat 371 00:37:20,238 --> 00:37:24,334 ...which quickly developed a taste for small kangaroos 372 00:37:24,442 --> 00:37:26,034 So did the fox 373 00:37:26,744 --> 00:37:30,510 They continue to take a dreadful toll on the kangaroo 374 00:37:30,615 --> 00:37:35,917 Now many of the smaller species face uncertain futures 375 00:37:44,061 --> 00:37:48,225 But for some kangaroos, the Europeans provided a bonanza 376 00:37:48,733 --> 00:37:53,193 They dug water bores throughout the desert to supply their livestock 377 00:37:53,938 --> 00:37:57,635 and the red kangaroo has benefitted ever since 378 00:38:08,619 --> 00:38:13,579 One 19th century naturalist spotted so few red kangaroos 379 00:38:13,691 --> 00:38:16,285 that he predicted their ultimate demise 380 00:38:16,394 --> 00:38:18,794 But thanks to the permanent water supply 381 00:38:18,896 --> 00:38:21,091 the population boomed 382 00:38:31,142 --> 00:38:33,872 When water is readily available to red kangaroos 383 00:38:33,978 --> 00:38:36,378 they breed like there's no tomorrow 384 00:38:36,480 --> 00:38:39,813 Joey's only been out of the pouch for two days 385 00:38:39,917 --> 00:38:43,409 but his mother is about to give birth again 386 00:38:48,826 --> 00:38:51,317 A pink embryo, the size of a bean 387 00:38:51,429 --> 00:38:53,727 makes its first appearance 388 00:38:55,533 --> 00:38:56,727 Blind and deaf 389 00:38:56,834 --> 00:39:01,771 it must somehow find its way to the mother's pouch or perish 390 00:39:05,810 --> 00:39:09,177 lts hind limbs, destined for enormity someday 391 00:39:09,280 --> 00:39:11,646 are now just useless buds 392 00:39:11,749 --> 00:39:15,082 It must use its tiny forelimbs to drag itself 393 00:39:15,186 --> 00:39:18,349 through the tangled forest of its mother's fur 394 00:39:18,456 --> 00:39:23,086 Instinct keeps it moving up against the pull of gravity 395 00:39:29,734 --> 00:39:34,364 The epic, six-inch journey takes over three minutes 396 00:39:58,562 --> 00:40:02,362 Once inside the pouch it searches out the nipples 397 00:40:06,003 --> 00:40:09,370 Joey's brother was actually conceived many months ago 398 00:40:09,473 --> 00:40:11,839 but remained in suspended animation 399 00:40:11,942 --> 00:40:14,604 while Mother tended to Joey himself 400 00:40:16,714 --> 00:40:21,276 It is a miraculous process the key to reproductive success 401 00:40:21,385 --> 00:40:24,582 While a mother raises one joey out of the pouch 402 00:40:24,688 --> 00:40:26,679 a tiny one grows inside it 403 00:40:26,791 --> 00:40:29,988 and a third waits on hold in the womb 404 00:40:37,234 --> 00:40:41,364 It's time for her to put yet another embryo in reserve 405 00:40:41,472 --> 00:40:43,406 Just two days after the birth 406 00:40:43,507 --> 00:40:49,742 the big reds start sniffing around again a sign she's already in heat 407 00:40:57,855 --> 00:41:00,323 Mother won't let Joey into the pouch anymore 408 00:41:00,391 --> 00:41:03,121 but she still nurses him occasionally 409 00:41:03,227 --> 00:41:08,790 Amazingly, she now produces two kinds of milk one for the embryo 410 00:41:08,899 --> 00:41:10,730 another for Joey 411 00:41:18,976 --> 00:41:22,241 Her condition sets some of the males to jousting 412 00:41:30,421 --> 00:41:31,581 A big newcomer 413 00:41:31,689 --> 00:41:34,419 collared by scientists to track his wanderings 414 00:41:34,525 --> 00:41:36,493 has thrown his hat into the ring 415 00:41:36,594 --> 00:41:41,293 He's over six feet tall and clearly dominates the contest 416 00:41:48,272 --> 00:41:50,331 By kangaroo Queensberry rules 417 00:41:50,441 --> 00:41:53,308 only the subdominant male kicks 418 00:41:53,410 --> 00:41:56,106 giving away his inferior position 419 00:42:07,057 --> 00:42:10,424 Mother, now eating for three and ready to make it four 420 00:42:10,528 --> 00:42:12,621 grazes continuously 421 00:42:17,268 --> 00:42:21,364 But fortunately, Joey increasingly fends for himself 422 00:42:30,247 --> 00:42:35,150 The very biggest of the males now finds Mother irresistible 423 00:42:45,229 --> 00:42:46,423 He's huge 424 00:42:46,530 --> 00:42:49,727 She appears to ignore his persistent attentions 425 00:43:14,091 --> 00:43:16,719 Then, her scent attracts another suitor 426 00:43:18,462 --> 00:43:22,159 But the dominant old male scoffs at competition 427 00:43:30,674 --> 00:43:31,538 From a distance 428 00:43:31,642 --> 00:43:34,611 Joey watches the proceedings 429 00:43:41,652 --> 00:43:44,644 The result of this mating will grow for a few days 430 00:43:44,755 --> 00:43:49,715 then become dormant until Joey's brother is out of the pouch 431 00:43:49,827 --> 00:43:51,886 With such an ingenious breeding scheme 432 00:43:51,996 --> 00:43:55,261 it is no wonder red kangaroo numbers exploded 433 00:43:55,366 --> 00:43:58,858 once humans supplied a permanent source of water 434 00:44:04,808 --> 00:44:08,676 Every year, survey teams take to the air to count the reds 435 00:44:08,779 --> 00:44:11,179 Their reports will determine the number of 'roos 436 00:44:11,281 --> 00:44:14,375 that can be hunted legally the following year 437 00:44:28,032 --> 00:44:31,798 Strewn over the vast harsh desert at the center of Australia 438 00:44:31,902 --> 00:44:36,066 red kangaroos now number close to ten million 439 00:44:41,311 --> 00:44:41,868 Out in the open 440 00:44:41,979 --> 00:44:46,040 Mother and Joey quickly recover from their fright at the plane 441 00:44:48,218 --> 00:44:52,086 Others inevitably encounter the thousands of miles of fencing 442 00:44:52,189 --> 00:44:54,885 that crisscross the desert... and sometimes 443 00:44:54,992 --> 00:44:57,426 these encounters are deadly 444 00:45:08,439 --> 00:45:11,135 Australia's kangaroo population is booming 445 00:45:11,241 --> 00:45:14,369 and several million are culled each year 446 00:45:27,057 --> 00:45:30,993 Mother and Joey freeze caught in the hunter's lights 447 00:45:35,466 --> 00:45:37,559 But they're not the quarry he seeks 448 00:46:03,494 --> 00:46:07,225 The hunter has his sights on huge red males 449 00:46:15,239 --> 00:46:18,572 Culling kangaroos strikes many people as cruel 450 00:46:18,675 --> 00:46:22,042 Others argue it's no crueler than slaughtering livestock 451 00:46:22,146 --> 00:46:25,138 Given Australia's delicate desert ecology 452 00:46:25,249 --> 00:46:28,548 the kangaroo harvest may prove more sustainable 453 00:46:28,652 --> 00:46:30,950 than raising sheep and cattle 454 00:46:37,294 --> 00:46:38,989 Aside from hunters' bullets 455 00:46:39,096 --> 00:46:42,156 kangaroos face another nighttime hazard 456 00:46:42,266 --> 00:46:46,066 thousands are killed each year on desert highways 457 00:46:58,982 --> 00:47:01,450 Mother and Joey are safe the next day 458 00:47:01,552 --> 00:47:04,385 but picking up dangerous habits 459 00:47:06,790 --> 00:47:10,521 Strips of green growth parallel Australia's roads places 460 00:47:10,627 --> 00:47:14,586 where the runoff from occasional rain nurtures fresh grasses 461 00:47:21,405 --> 00:47:23,202 Feeding along roadsides at night 462 00:47:23,307 --> 00:47:27,266 kangaroos often blunder into oncoming vehicles 463 00:47:39,389 --> 00:47:41,619 The sheer numbers of red kangaroos 464 00:47:41,725 --> 00:47:44,819 makes this an all too common sight 465 00:47:46,563 --> 00:47:49,054 But in a very different part of Australia 466 00:47:49,166 --> 00:47:53,865 there are still rare kangaroos that few people have ever seen 467 00:47:56,673 --> 00:48:00,734 Here, in one of the remaining slices of primeval forest 468 00:48:00,844 --> 00:48:04,177 the kangaroo story comes full circle 469 00:48:07,551 --> 00:48:11,749 This is Mount Finnigan a place of reverence for Aborigines 470 00:48:11,855 --> 00:48:13,720 and one of the last strongholds 471 00:48:13,824 --> 00:48:17,487 of one of Joey's most extraordinary relatives 472 00:48:20,697 --> 00:48:23,928 It takes patience to catch a glimpse of this elusive creature 473 00:48:24,034 --> 00:48:26,366 and a healthy measure of luck 474 00:48:28,305 --> 00:48:31,297 An experienced woodsman recognizes telltale claw 475 00:48:31,408 --> 00:48:33,899 marks leading up into the canopy 476 00:48:38,615 --> 00:48:42,608 There it is... Bennett's tree kangaroo 477 00:48:50,494 --> 00:48:54,692 Millions of years after kangaroos came down out of trees 478 00:48:54,798 --> 00:48:57,198 the Bennetts went back up 479 00:49:01,305 --> 00:49:04,832 In evolutionary terms, they haven't been up there very long 480 00:49:04,942 --> 00:49:09,504 And those big hind feet seem ill suited to life among the leaves 481 00:49:20,891 --> 00:49:22,017 While a mother forages 482 00:49:22,125 --> 00:49:25,652 her joey clings uncertainly to a nearby vine 483 00:49:31,134 --> 00:49:33,864 They look awkward and out of place up here 484 00:49:33,971 --> 00:49:36,667 but tree kangaroos are very acrobatic 485 00:49:36,773 --> 00:49:41,142 They can make spectacular leaps of 20 feet from limb to limb 486 00:49:41,244 --> 00:49:44,907 and can safely catapult 60 feet down if startled 487 00:49:48,418 --> 00:49:51,649 Remarkably, another kind of kangaroo has also 488 00:49:51,755 --> 00:49:53,882 taken to life in the treetops 489 00:49:53,991 --> 00:49:56,960 This is Lumholtz's tree kangaroo 490 00:49:57,060 --> 00:49:58,823 and like their ground-based cousins 491 00:49:58,929 --> 00:50:01,864 Mother and joey are quite affectionate 492 00:50:12,342 --> 00:50:15,869 As they walk, they move their hind legs independently 493 00:50:15,979 --> 00:50:18,504 something most 'roos don't do 494 00:50:44,841 --> 00:50:47,605 But nothing compares to big reds in the desert 495 00:50:47,711 --> 00:50:50,680 where the hop still reigns supreme 496 00:50:52,182 --> 00:50:55,447 Joey's quickly approaching his mother's size 497 00:51:02,659 --> 00:51:07,289 Her younger joey has recently started taking his first peak at the world 498 00:51:07,397 --> 00:51:11,959 and will soon outstrip his brother in the quest for Mother's attention 499 00:51:19,309 --> 00:51:21,834 Joey must now look after himself 500 00:51:21,945 --> 00:51:25,210 and begin mixing it up with other young males 501 00:51:34,624 --> 00:51:35,648 Right on schedule 502 00:51:35,759 --> 00:51:38,284 he has taken an interest in jousting 503 00:51:45,435 --> 00:51:48,336 Tentatively, he approaches the fray 504 00:52:03,153 --> 00:52:04,814 And while his mother looks on 505 00:52:04,921 --> 00:52:07,549 he gets into his first dust-up 506 00:52:25,509 --> 00:52:27,875 Joey is beginning to look the part 507 00:52:27,978 --> 00:52:30,845 He has all the makings of a big red 508 00:52:37,687 --> 00:52:39,712 Turning adversity into advantage 509 00:52:39,823 --> 00:52:43,884 the red kangaroo has flourished even as its kangaroo cousins 510 00:52:43,994 --> 00:52:46,929 have struggled or disappeared altogether 511 00:52:47,030 --> 00:52:52,024 This pouch-raised powerhouse is a marvel of natural engineering 512 00:52:52,135 --> 00:52:56,231 It inherited the harsh expanse of Australia's desert 513 00:52:56,339 --> 00:52:59,536 and made the landscape its own