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These are the user uploaded subtitles that are being translated: 1 00:00:00,267 --> 00:00:05,267 (dramatic music) 2 00:00:06,109 --> 00:00:08,172 The Masai Mara. 3 00:00:08,172 --> 00:00:11,617 One of Africa's most iconic landscapes. 4 00:00:12,743 --> 00:00:17,334 A vast of sea of grass within Kenya's Great Rift Valley. 5 00:00:23,793 --> 00:00:27,227 And home to one of the greatest wildlife spectacles 6 00:00:27,227 --> 00:00:28,501 on earth. 7 00:00:29,200 --> 00:00:31,189 The great migrations. 8 00:00:38,000 --> 00:00:43,000 (elephant vocalizations) 9 00:00:51,023 --> 00:00:55,465 The rich grasslands attract vast herds of grazes. 10 00:01:02,483 --> 00:01:06,583 And they also attract some of Africa's largest predators. 11 00:01:06,583 --> 00:01:11,276 (building dramatic music) 12 00:01:11,276 --> 00:01:12,945 The lion. 13 00:01:12,945 --> 00:01:15,913 The strongest and most powerful of all. 14 00:01:22,321 --> 00:01:24,066 And the cheetah. 15 00:01:24,066 --> 00:01:27,719 The fastest and most agile hunter on the Savanna. 16 00:01:42,680 --> 00:01:46,381 But the most successful hunter of them all 17 00:01:46,381 --> 00:01:48,764 is too often overlooked. 18 00:01:49,463 --> 00:01:50,993 The hyena. 19 00:01:54,508 --> 00:01:57,783 Hyenas have a reputation as cowardly theives 20 00:01:57,783 --> 00:01:59,777 and scavengers. 21 00:01:59,777 --> 00:02:02,540 But in fact, they are highly intelligent 22 00:02:02,540 --> 00:02:04,780 and efficient predators. 23 00:02:04,780 --> 00:02:06,614 Working together as a pack, 24 00:02:06,614 --> 00:02:11,126 they can bring down animals many times their size. 25 00:02:11,126 --> 00:02:15,467 In a team, they are arguably the most successful 26 00:02:15,467 --> 00:02:17,413 predator of all. 27 00:02:30,437 --> 00:02:33,711 Dry season in the Masai Mara. 28 00:02:33,711 --> 00:02:37,466 It's a difficult time for the hyenas. 29 00:02:37,466 --> 00:02:39,652 Prey is scarce on the ground 30 00:02:39,652 --> 00:02:42,366 and their young cubs need food. 31 00:02:52,890 --> 00:02:56,324 There has been no rain for over three months. 32 00:02:56,324 --> 00:02:59,075 And only the heartiest will survive. 33 00:02:59,075 --> 00:03:04,060 (slow dramatic music) 34 00:03:08,780 --> 00:03:11,441 Hyenas usually hunt in packs. 35 00:03:12,300 --> 00:03:14,455 And if they do not find food, 36 00:03:14,455 --> 00:03:16,912 the whole clan goes hungry. 37 00:03:20,235 --> 00:03:23,019 This time, they're lucky. 38 00:03:23,019 --> 00:03:25,546 They found a carcass of a hippo. 39 00:03:25,546 --> 00:03:28,698 Ample food for the entire pack. 40 00:03:29,888 --> 00:03:34,719 Their powerful teeth and jaws can tear the toughest skin 41 00:03:34,719 --> 00:03:38,559 and crush bones to get to the nutritious marrow. 42 00:03:38,559 --> 00:03:42,531 They will consume every part of the carcass. 43 00:03:44,990 --> 00:03:48,382 A lion has brought down a wild boar. 44 00:03:48,382 --> 00:03:51,891 It's a meager meal, but the large herds of zebra 45 00:03:51,891 --> 00:03:55,863 and wilderbeast will not arrive until after the rains. 46 00:04:02,276 --> 00:04:06,120 The fresh kill is eyed enviously by others. 47 00:04:12,921 --> 00:04:14,990 A hyena takes the opportunity 48 00:04:14,990 --> 00:04:17,651 to make off with a piece of the bounty. 49 00:04:26,605 --> 00:04:28,120 In fact, more often 50 00:04:28,120 --> 00:04:31,640 it's lions who steal prey from hyenas. 51 00:04:31,640 --> 00:04:35,655 But this time, the big cats have to watch their backs. 52 00:04:38,737 --> 00:04:42,912 (hyena vocalizations) 53 00:04:49,535 --> 00:04:51,775 The lions have had their fill, 54 00:04:51,775 --> 00:04:55,107 and now the hyena pack can finish off the rest. 55 00:04:58,319 --> 00:05:00,076 There's a change in the air. 56 00:05:00,076 --> 00:05:05,071 (dramatic music building tempo) 57 00:05:06,316 --> 00:05:09,605 Rain clouds gather above the Masai Mara. 58 00:05:17,110 --> 00:05:19,872 The parched land and its inhabitants have been waiting 59 00:05:19,872 --> 00:05:21,168 for this moment. 60 00:05:27,465 --> 00:05:30,718 Overnight, the life giving waters will transform 61 00:05:30,718 --> 00:05:32,333 the African Savanna. 62 00:05:39,528 --> 00:05:44,528 (birds chirping) 63 00:05:56,036 --> 00:06:00,260 Biologist Kay Holycamp from Michigan State University 64 00:06:00,260 --> 00:06:03,609 has been studying spotted hyenas in the Masai Mara 65 00:06:03,609 --> 00:06:05,459 for over 20 years. 66 00:06:06,457 --> 00:06:08,899 Today, she's on a mission to sedate one of them 67 00:06:08,899 --> 00:06:12,936 with a tranquilizer dart in order to measure and examine it. 68 00:06:14,008 --> 00:06:17,048 If Tracy's actually able to get a shot, do not move. 69 00:06:17,048 --> 00:06:17,997 Do not turn your camera. 70 00:06:17,997 --> 00:06:19,064 Do not make a sound. 71 00:06:19,064 --> 00:06:21,779 Do not to anything, just everybody has to freeze, okay, 72 00:06:21,779 --> 00:06:23,148 so get the camera where you want it to be 73 00:06:23,148 --> 00:06:27,014 'cause if she hits it, then we can't scare it. 74 00:06:29,953 --> 00:06:32,597 Kay's student, Tracy, has been helping her 75 00:06:32,597 --> 00:06:34,923 for nearly a year now and is proficient 76 00:06:34,923 --> 00:06:36,708 with the tranquilizer gun. 77 00:06:37,429 --> 00:06:39,748 Nevertheless, she is nervous. 78 00:06:51,326 --> 00:06:53,897 It's crucial the animals don't realize the dart 79 00:06:53,897 --> 00:06:56,873 was shot from the scientists car. 80 00:06:56,873 --> 00:06:59,518 If they do, they'll no longer trust the approach 81 00:06:59,518 --> 00:07:03,458 of the vehicle and the entire project will be in danger. 82 00:07:08,600 --> 00:07:10,488 It usually takes around 10 minutes 83 00:07:10,488 --> 00:07:13,293 for the tranquilizer to take effect, 84 00:07:13,293 --> 00:07:15,320 but hyenas are tough, 85 00:07:15,320 --> 00:07:17,916 and this animal will not go down easily. 86 00:07:38,065 --> 00:07:39,724 After 20 minutes, 87 00:07:39,724 --> 00:07:43,078 the young female finally collapses on the ground. 88 00:07:48,996 --> 00:07:52,160 Tracy places a cloth over the hyena's eyes 89 00:07:52,160 --> 00:07:54,127 to shield it from the sun. 90 00:08:00,123 --> 00:08:03,454 And Kay take a blood sample for testing in the lab. 91 00:08:03,454 --> 00:08:08,393 (scientists whispering) 92 00:08:08,393 --> 00:08:10,973 They measure the animal's teeth to check its general 93 00:08:10,973 --> 00:08:12,759 health and growth. 94 00:08:16,775 --> 00:08:19,884 Then Kay carefully removes the dart. 95 00:08:21,489 --> 00:08:23,019 16.5. 96 00:08:23,463 --> 00:08:25,531 Hyenas scent mark their territories 97 00:08:25,531 --> 00:08:28,859 with an oily secretion from their anal gland. 98 00:08:28,859 --> 00:08:31,956 A sample is taken for further analysis. 99 00:08:33,146 --> 00:08:36,350 And finally the young female is weighed. 100 00:08:38,170 --> 00:08:40,862 Okay, (mumbles). 101 00:08:44,441 --> 00:08:46,926 Kay and her team load the sedated hyena 102 00:08:46,926 --> 00:08:50,179 onto the jeep to take it to a safe spot. 103 00:08:50,179 --> 00:08:53,774 She wouldn't survive for long out here in the open. 104 00:08:53,774 --> 00:08:56,749 Temperatures on the plains rise to over 40 degrees in 105 00:08:56,749 --> 00:08:58,211 the midday sun. 106 00:08:58,211 --> 00:09:00,461 And the sedated animal would be an easy target 107 00:09:00,461 --> 00:09:02,823 for other hungry predators. 108 00:09:22,517 --> 00:09:25,834 Kay knows the Masai Mara like the back of her hand, 109 00:09:25,834 --> 00:09:29,476 and has found a shady place to release the young hyena. 110 00:09:39,147 --> 00:09:42,229 They place her under the bushes and cool her down 111 00:09:42,229 --> 00:09:43,386 with water. 112 00:09:45,739 --> 00:09:50,739 (mumbles) 113 00:09:51,456 --> 00:09:53,802 Then the hiding place is camouflaged 114 00:09:53,802 --> 00:09:56,249 with twigs and branches. 115 00:10:00,810 --> 00:10:03,620 The young hyena is starting to wake up. 116 00:10:04,500 --> 00:10:07,689 She will not remember anything of what has happened. 117 00:10:07,689 --> 00:10:10,238 Or so, the biologists hope. 118 00:10:10,238 --> 00:10:13,411 (car engine starts up) 119 00:10:18,920 --> 00:10:22,195 Kay Holycamp spends two to three months every year 120 00:10:22,195 --> 00:10:24,232 in the Masai Mara. 121 00:10:24,232 --> 00:10:27,069 She has tagged a few hyenas from one particular group 122 00:10:27,069 --> 00:10:31,485 with radio transmitters and has called them the Talek Clan 123 00:10:31,485 --> 00:10:33,195 after a nearby river. 124 00:10:34,151 --> 00:10:37,126 Each morning, she and her team set off at dawn 125 00:10:37,126 --> 00:10:39,830 to track down and follow the family. 126 00:10:46,438 --> 00:10:47,344 She's fat. 127 00:10:47,344 --> 00:10:48,458 Yeah. 128 00:10:49,275 --> 00:10:51,547 The researchers have given every animal 129 00:10:51,547 --> 00:10:52,635 a name. 130 00:10:52,635 --> 00:10:53,797 We might have to check the other side. 131 00:10:53,797 --> 00:10:56,357 There is a Reagan and an Obama. 132 00:10:56,357 --> 00:10:59,354 And each one has its own unique pattern of spots 133 00:10:59,354 --> 00:11:00,698 like a fingerprint. 134 00:11:00,698 --> 00:11:04,858 So she has this really horizontal line across her side, 135 00:11:04,858 --> 00:11:08,655 and then a wishbone shape there. 136 00:11:08,655 --> 00:11:12,121 We've got the adult female still walking to the south. 137 00:11:12,121 --> 00:11:13,604 Southeast maybe. 138 00:11:13,604 --> 00:11:17,230 About 20 meters away is Jeeves, 139 00:11:17,230 --> 00:11:19,641 and about 60 meters away is Puma. 140 00:11:19,641 --> 00:11:21,405 All walking the same direction. 141 00:11:23,085 --> 00:11:25,058 Yeah, sometimes the youngsters use the adults. 142 00:11:25,058 --> 00:11:27,448 The main focus of Kay's research 143 00:11:27,448 --> 00:11:31,654 is to unravel the complex social system of spotted hyenas. 144 00:11:32,951 --> 00:11:35,831 The scientists follow the animals for up to five hours 145 00:11:35,831 --> 00:11:36,833 each day. 146 00:11:36,833 --> 00:11:40,144 And record every movement and interaction. 147 00:11:43,222 --> 00:11:46,699 Back in camp, all the data is put onto the computer 148 00:11:46,699 --> 00:11:49,039 and painstakingly analyzed. 149 00:11:51,765 --> 00:11:53,386 The camp is on the northern edge 150 00:11:53,386 --> 00:11:55,733 of the Masai Mara National Park. 151 00:11:55,733 --> 00:11:58,261 Deep inside the African bush. 152 00:11:58,261 --> 00:12:01,461 It's an unlikely place for modern day techniques, 153 00:12:01,461 --> 00:12:03,157 but in their makeshift lab, 154 00:12:03,157 --> 00:12:05,737 the team somehow manage to analyze the samples 155 00:12:05,737 --> 00:12:07,182 they collect. 156 00:12:13,566 --> 00:12:15,635 With patience and dedication, 157 00:12:15,635 --> 00:12:18,494 the team have gathered vast amounts of data 158 00:12:18,494 --> 00:12:20,670 and gained a unique insight into the lives 159 00:12:20,670 --> 00:12:22,952 of spotted hyenas. 160 00:12:22,952 --> 00:12:25,597 Their research have revealed that the animals reputation 161 00:12:25,597 --> 00:12:27,901 as mean and dimwitted scavenger 162 00:12:27,901 --> 00:12:29,911 is far from the truth. 163 00:12:30,546 --> 00:12:33,212 Behind the seemingly ugly exterior, 164 00:12:33,212 --> 00:12:36,342 lies a highly intelligent and complex creature. 165 00:12:38,929 --> 00:12:41,457 I think it's become clear that hyenas 166 00:12:41,457 --> 00:12:44,689 are much more interesting and complex animals 167 00:12:44,689 --> 00:12:47,676 than anyone had previously assumed. 168 00:12:47,676 --> 00:12:49,627 They had a very bad reputation 169 00:12:49,627 --> 00:12:54,388 up until the 1990s, I think, in terms of being 170 00:12:55,120 --> 00:12:58,533 sculking carrion-eaters that would steal food from the 171 00:12:58,533 --> 00:12:59,994 real hunters, quote on quote. 172 00:12:59,994 --> 00:13:02,191 Like cheetahs and lions and leopards. 173 00:13:02,191 --> 00:13:04,474 But in fact, we now know these animals are extraordinarily 174 00:13:04,474 --> 00:13:05,359 good hunters. 175 00:13:05,359 --> 00:13:08,121 They kill animals that are three or four times 176 00:13:08,121 --> 00:13:10,137 their body mass on their own. 177 00:13:10,137 --> 00:13:12,580 We know that they live in a primate-like society. 178 00:13:12,580 --> 00:13:15,246 And they recognize one another 179 00:13:15,246 --> 00:13:17,284 and they remember their social interactions, 180 00:13:17,284 --> 00:13:20,931 and they can solve social problems 181 00:13:20,931 --> 00:13:23,311 that, as far as we know, 182 00:13:23,311 --> 00:13:25,500 only primates have been shown to be able to solve 183 00:13:25,500 --> 00:13:26,839 in the past. 184 00:13:28,353 --> 00:13:30,902 Spotted hyenas live in large clans of up to 185 00:13:30,902 --> 00:13:33,110 80 individuals. 186 00:13:33,110 --> 00:13:35,147 It's a matriarchal society 187 00:13:35,147 --> 00:13:38,021 with females out ranking the males. 188 00:13:39,883 --> 00:13:42,250 (hyena vocalizations) 189 00:13:43,482 --> 00:13:47,546 Hyena mothers suckle their cubs for nearly 18 months. 190 00:13:47,546 --> 00:13:49,423 It's an unusually long time, 191 00:13:49,423 --> 00:13:52,346 but probably a necessity as most kills are made 192 00:13:52,346 --> 00:13:54,089 far from the den. 193 00:13:55,396 --> 00:13:57,433 Not until they're four years old, 194 00:13:57,433 --> 00:14:00,292 can the young hyenas hunt for themselves. 195 00:14:00,292 --> 00:14:05,292 (soft classical music) 196 00:14:10,947 --> 00:14:14,648 The Masai Mara is remarkable for its great concentration 197 00:14:14,648 --> 00:14:16,856 of large grazes. 198 00:14:16,856 --> 00:14:19,576 Over two million buffalo, zebra, 199 00:14:19,576 --> 00:14:22,840 wilderbeast, and antelope feed on the endless seas 200 00:14:22,840 --> 00:14:24,092 of grass. 201 00:14:25,400 --> 00:14:28,002 It's a rich supply of food for predators 202 00:14:28,002 --> 00:14:30,183 and hyenas thrive here. 203 00:14:31,138 --> 00:14:34,199 They will tackle almost any kind of prey. 204 00:14:34,199 --> 00:14:36,636 One of the reasons for their success. 205 00:14:43,489 --> 00:14:45,740 Zebras have a fiery temperament 206 00:14:45,740 --> 00:14:47,478 and sharp hooves. 207 00:14:47,478 --> 00:14:51,887 And it can take a team of 10 to 20 hyenas to bring one down. 208 00:14:53,077 --> 00:14:55,210 They way hyenas hunt is actually very different 209 00:14:55,210 --> 00:14:58,368 from any of the other animals here in terms of 210 00:14:58,368 --> 00:14:59,978 how they hunt. 211 00:14:59,978 --> 00:15:03,573 The hyenas actually will be wandering across the plain, 212 00:15:03,573 --> 00:15:06,335 come across a group of potential prey, 213 00:15:06,335 --> 00:15:09,823 rush it, and then send them into a flurry of flight 214 00:15:09,823 --> 00:15:12,351 and confusion and then the hyena somehow 215 00:15:12,351 --> 00:15:15,177 can actually pick out a vulnerable individual. 216 00:15:15,177 --> 00:15:18,206 Those tend to be either animals that are quite elderly 217 00:15:18,206 --> 00:15:20,596 that have some sort of physical problem like a limp 218 00:15:20,596 --> 00:15:23,380 or sometimes very pregnant females who are carrying 219 00:15:23,380 --> 00:15:26,147 a heavy fetus and have a hard time running quickly. 220 00:15:30,366 --> 00:15:33,202 The topi, a large Savanna antelope 221 00:15:33,202 --> 00:15:36,214 is a favorite prey of spotted hyenas. 222 00:15:39,494 --> 00:15:42,342 It's breeding season, and the males have gathered 223 00:15:42,342 --> 00:15:44,821 to fight for mating rites. 224 00:15:44,821 --> 00:15:47,728 The strongest will have their pick of the females. 225 00:15:47,728 --> 00:15:50,213 The losers will go without. 226 00:15:50,213 --> 00:15:55,213 (Topi vocalizations) 227 00:15:55,269 --> 00:15:58,319 (birds chirping) 228 00:15:58,319 --> 00:16:00,911 It's hard work during the midday heat, 229 00:16:00,911 --> 00:16:05,028 and the animals take a rest from their exertions. 230 00:16:05,028 --> 00:16:06,809 But down on the ground, 231 00:16:06,809 --> 00:16:09,487 they may not see approaching danger. 232 00:16:10,457 --> 00:16:15,457 (upbeat music) 233 00:16:19,457 --> 00:16:23,062 The hyenas are taking a cooling mud bath. 234 00:16:23,062 --> 00:16:25,302 It's pleasant in the sweltering heat, 235 00:16:25,302 --> 00:16:27,860 and it rids the fur of parasites. 236 00:16:40,750 --> 00:16:45,651 It may also help to cool down before embarking on a hunt. 237 00:16:48,920 --> 00:16:52,483 Hyenas usually hunt under cover of darkness. 238 00:16:52,483 --> 00:16:55,501 But this female just emerged from her bath 239 00:16:55,501 --> 00:16:57,234 has other plans. 240 00:16:58,563 --> 00:17:01,560 Kay has noticed that some animals will hunt Topi 241 00:17:01,560 --> 00:17:04,834 during the day, particularly in the rainy season 242 00:17:04,834 --> 00:17:07,484 when the antelopes congregate to mate. 243 00:17:10,199 --> 00:17:14,178 The hyena strolls by with a casual careless gait. 244 00:17:14,178 --> 00:17:17,612 Apparently showing no interest in the Topi 245 00:17:17,612 --> 00:17:19,654 until the last minute. 246 00:17:23,255 --> 00:17:24,945 No luck this time. 247 00:17:29,964 --> 00:17:34,551 (ominous music) 248 00:17:54,254 --> 00:17:56,611 A close shave for the Topi. 249 00:17:56,611 --> 00:17:59,581 It has escaped with just a small wound. 250 00:18:07,437 --> 00:18:10,541 On their own, hyenas have a much smaller chance 251 00:18:10,541 --> 00:18:12,333 of making a kill. 252 00:18:12,333 --> 00:18:16,258 Only one in five of all attempts is successful. 253 00:18:16,258 --> 00:18:18,711 Yet when it comes to hunting Topi, 254 00:18:18,711 --> 00:18:22,221 Kay Holycamp believes that alone they may stand 255 00:18:22,221 --> 00:18:24,033 a better chance. 256 00:18:24,033 --> 00:18:26,166 My observation of it suggest that it's usually 257 00:18:26,166 --> 00:18:29,025 an individual affair and 258 00:18:29,025 --> 00:18:30,582 this is one of those times where they prefer 259 00:18:30,582 --> 00:18:31,436 not to hunt in groups. 260 00:18:31,436 --> 00:18:34,849 They're usually tip-toeing very quietly among the dozing 261 00:18:34,849 --> 00:18:37,057 Topis individually, 262 00:18:37,057 --> 00:18:39,190 and that's a case where if they can actually 263 00:18:39,190 --> 00:18:42,756 take a Topi by surprise, they may be able to just grab it. 264 00:18:44,991 --> 00:18:46,612 Lake Nakuru, 265 00:18:46,612 --> 00:18:49,418 one of the Rift Valley's many soda lakes. 266 00:18:49,418 --> 00:18:53,737 150 kilometers northeast of the Masai Mara. 267 00:18:53,737 --> 00:18:56,340 It attracts millions of flamingos 268 00:18:56,340 --> 00:18:59,822 that feed on the abundance of algae in its waters. 269 00:19:04,350 --> 00:19:06,995 The lake lies within a national park 270 00:19:06,995 --> 00:19:09,555 and is a haven for water birds. 271 00:19:09,555 --> 00:19:14,555 (bird vocalizations) 272 00:19:21,076 --> 00:19:24,745 Hyenas also live on the shores of the lake. 273 00:19:24,745 --> 00:19:27,998 The females with cub spend most of the day playing 274 00:19:27,998 --> 00:19:30,643 and lounging on the sandy beach. 275 00:19:30,643 --> 00:19:35,643 (bird vocalizations) 276 00:19:40,328 --> 00:19:44,669 But these hyenas have a rather unusual diet. 277 00:19:44,669 --> 00:19:47,169 They hunt flamingos on the lake. 278 00:19:49,799 --> 00:19:54,194 It's a remarkable scene and even Kay has never seen hyenas 279 00:19:54,194 --> 00:19:56,671 go for this kind of prey before. 280 00:19:57,884 --> 00:19:59,344 Love that swimming. 281 00:19:59,344 --> 00:20:01,887 You don't get to see them swim here often enough. 282 00:20:02,661 --> 00:20:05,498 The biologists are excited to witness a hunt 283 00:20:05,498 --> 00:20:06,885 in the water. 284 00:20:08,164 --> 00:20:09,422 (mumbles) 285 00:20:09,422 --> 00:20:10,628 I know. That's really cute. 286 00:20:10,628 --> 00:20:13,710 But Kay is not overly surprised. 287 00:20:13,710 --> 00:20:17,198 It's just more evidence of the hyenas adaptability. 288 00:20:17,198 --> 00:20:19,907 Yeah, I wouldn't be surprised at all if you had 289 00:20:19,907 --> 00:20:21,774 hyenas that lived around these Rift Valley lakes 290 00:20:21,774 --> 00:20:23,790 that were actually 291 00:20:23,790 --> 00:20:26,111 flamingo specialists, 292 00:20:26,111 --> 00:20:28,269 'cause it's such an abundant food source when the 293 00:20:28,269 --> 00:20:29,965 flamingos are present, so 294 00:20:29,965 --> 00:20:34,264 I think it would be totally expected for them to actually be 295 00:20:34,264 --> 00:20:36,803 specializing on flamingos. 296 00:20:36,803 --> 00:20:38,381 They're clearly pretty good at it, 297 00:20:38,381 --> 00:20:40,346 so (mumbles) trouble at all. 298 00:20:40,346 --> 00:20:43,365 (flamingo vocalizations) 299 00:20:43,365 --> 00:20:48,365 (dramatic music) 300 00:20:50,479 --> 00:20:52,217 Back in the Masai Mara, 301 00:20:52,217 --> 00:20:55,268 its a greater struggle for survival. 302 00:20:55,268 --> 00:20:58,286 Here, the hyenas have to face competition from other 303 00:20:58,286 --> 00:20:59,838 big predators. 304 00:21:02,510 --> 00:21:06,414 The cheetah is the fastest hunter on the open plains 305 00:21:06,414 --> 00:21:10,034 reaching speeds of over 100 kilometers an hour. 306 00:21:14,381 --> 00:21:18,563 This athletic cat can outrun any predator 307 00:21:18,563 --> 00:21:20,061 or prey. 308 00:21:28,567 --> 00:21:30,423 These three cheetah brothers 309 00:21:30,423 --> 00:21:33,894 hunt as a team and they share their spoils. 310 00:21:35,297 --> 00:21:38,192 They are unaware that they're being watched. 311 00:21:39,542 --> 00:21:44,542 (dramatic music) 312 00:22:02,581 --> 00:22:06,180 The hyena has robbed the cheetahs of their bounty. 313 00:22:10,441 --> 00:22:12,713 But that's not all. 314 00:22:12,713 --> 00:22:14,900 The rest of the clan have arrived 315 00:22:14,900 --> 00:22:17,430 and they look like they mean business. 316 00:22:18,432 --> 00:22:23,432 (hyena vocalizations) 317 00:22:28,501 --> 00:22:30,804 The pack have driven one of the brothers 318 00:22:30,804 --> 00:22:32,217 up a tree. 319 00:22:34,707 --> 00:22:37,736 Cheetahs are not good climbers. 320 00:22:37,736 --> 00:22:40,616 But the young male has little choice. 321 00:22:40,616 --> 00:22:44,791 He is no match for the powerful and aggressive hyenas. 322 00:22:47,212 --> 00:22:50,070 His brothers can do little, but watch anxiously 323 00:22:50,070 --> 00:22:51,963 from a safe distance. 324 00:22:52,826 --> 00:22:56,729 It's not until nightfall that the hyenas finally move on. 325 00:22:56,729 --> 00:23:01,729 (birds chirping) 326 00:23:06,051 --> 00:23:10,626 Another hippo has fallen victim to two male lions. 327 00:23:10,626 --> 00:23:14,786 One and a half tons of fresh meat out on the grassland 328 00:23:14,786 --> 00:23:18,673 are a major attraction for other predators and scavengers. 329 00:23:22,658 --> 00:23:25,559 The lions can't consume a carcass this size 330 00:23:25,559 --> 00:23:28,236 in one sitting, so they will feed on it 331 00:23:28,236 --> 00:23:30,459 for the next few days. 332 00:23:35,404 --> 00:23:39,307 For now, the hyenas keep a respectful distance 333 00:23:39,307 --> 00:23:42,026 as do other interested parties. 334 00:23:42,026 --> 00:23:43,466 A jackyl 335 00:23:43,466 --> 00:23:45,465 and a flock of vultures. 336 00:23:49,578 --> 00:23:54,425 Challenging two adult lions could prove to be fatal. 337 00:23:57,097 --> 00:23:59,401 The hyenas wait for the lions to withdraw 338 00:23:59,401 --> 00:24:01,076 for an afternoon nap. 339 00:24:01,076 --> 00:24:03,789 Then, they take their chance. 340 00:24:10,075 --> 00:24:13,152 But this will be a short-lived feast. 341 00:24:14,833 --> 00:24:19,833 (ominous music) 342 00:24:30,176 --> 00:24:31,851 They were lucky. 343 00:24:31,851 --> 00:24:34,870 The lion's pursuit was half hearted. 344 00:24:34,870 --> 00:24:39,870 With a full belly, defending his prize is quite an effort. 345 00:24:40,843 --> 00:24:44,313 Now the vultures seize the opportunity too. 346 00:24:49,983 --> 00:24:54,601 Like vultures, hyenas can eat and digest almost anything. 347 00:24:54,601 --> 00:24:57,235 Meat, bones, and (mumbles). 348 00:24:57,235 --> 00:24:59,883 They are both hunter and scavenger, 349 00:24:59,883 --> 00:25:02,106 taking whatever is on offer. 350 00:25:11,487 --> 00:25:16,138 The lion decides to defend his kill after all. 351 00:25:16,138 --> 00:25:19,588 And the lion is not giving up so easily. 352 00:25:26,559 --> 00:25:30,249 A close encounter for the hyena. 353 00:25:30,249 --> 00:25:33,737 Lions do not usually tolerate such competition 354 00:25:33,737 --> 00:25:36,798 and frequently kill their rivals. 355 00:25:36,798 --> 00:25:39,817 Over half of all hyena deaths are from interactions 356 00:25:39,817 --> 00:25:44,130 with lions, usually at kills such as this. 357 00:25:46,291 --> 00:25:48,456 The relationship between hyenas and lions 358 00:25:48,456 --> 00:25:50,195 generally not very good. 359 00:25:50,195 --> 00:25:54,216 It's uneasy as best and downright murderous at worst. 360 00:25:54,216 --> 00:25:57,234 For the most part, these animals are relying on exactly 361 00:25:57,234 --> 00:25:59,954 the same resource base. 362 00:25:59,954 --> 00:26:03,004 Hyenas and lions feed on the same size and same 363 00:26:03,004 --> 00:26:07,271 diversity of antelope, and yet the lions are. 364 00:26:07,271 --> 00:26:09,415 Well, a lion (mumbles) four times the size 365 00:26:09,415 --> 00:26:12,348 of an adult hyena and 366 00:26:12,348 --> 00:26:15,942 a single adult male lion can actually 367 00:26:15,942 --> 00:26:18,603 kill a hyena with just a swat of its paw. 368 00:26:20,123 --> 00:26:22,299 Every evening, the research team 369 00:26:22,299 --> 00:26:26,502 check on the hyena den by the Talek River. 370 00:26:26,502 --> 00:26:28,870 The communal den houses all the youngsters 371 00:26:28,870 --> 00:26:31,387 from the clan of varying ages 372 00:26:31,387 --> 00:26:33,418 and from different mothers. 373 00:26:38,128 --> 00:26:41,658 So at 18:08 we arrive at riverbed den. 374 00:26:41,658 --> 00:26:44,121 We have one cub sacked out and one cub stand look 375 00:26:44,121 --> 00:26:46,019 about 15 meters from the den. 376 00:26:46,019 --> 00:26:49,017 And one, two, three, four cubs 377 00:26:49,017 --> 00:26:53,880 (mumbles) about eight meters from the den. 378 00:26:53,880 --> 00:26:56,322 (hyena vocalizations) 379 00:26:56,322 --> 00:26:59,479 The den is the center of clan activity. 380 00:26:59,479 --> 00:27:03,991 It's here where friendships and alliances are forged. 381 00:27:03,991 --> 00:27:07,404 The younger cubs are still safely below ground, 382 00:27:07,404 --> 00:27:09,698 but the older ones are already busy 383 00:27:09,698 --> 00:27:11,920 exploring their surroundings. 384 00:27:13,900 --> 00:27:16,139 So the communal den hole is just right ahead 385 00:27:16,139 --> 00:27:16,897 of the vehicle there. 386 00:27:16,897 --> 00:27:20,949 You can see three cubs sacked out in front of the den hole, 387 00:27:20,949 --> 00:27:25,034 and this is actually a big aardvark 388 00:27:25,034 --> 00:27:27,423 den complex that the hyenas have modified a bit, 389 00:27:27,423 --> 00:27:29,727 and they're using this den hole as well as 390 00:27:29,727 --> 00:27:32,490 a couple of others off to the sides. 391 00:27:32,490 --> 00:27:35,412 And the cubs move among them fairly freely 392 00:27:35,412 --> 00:27:38,346 'cause they're old enough to do that without danger. 393 00:27:38,346 --> 00:27:40,596 They're pretty well able to run out of trouble 394 00:27:40,596 --> 00:27:41,695 if they get into it, 395 00:27:41,695 --> 00:27:44,180 and at this particular den right now, 396 00:27:44,180 --> 00:27:46,174 we have 15 cubs ranging in age 397 00:27:46,174 --> 00:27:51,174 from about 2 months to 398 00:27:51,239 --> 00:27:53,568 almost nine months, actually. 399 00:27:56,497 --> 00:27:58,288 The young hyenas are looked after 400 00:27:58,288 --> 00:28:00,091 not just by their mothers, 401 00:28:00,091 --> 00:28:03,696 but also by older siblings, aunts, and other females 402 00:28:03,696 --> 00:28:05,055 in the clan. 403 00:28:08,112 --> 00:28:12,890 Teamwork and co-operation are key to the hyena success. 404 00:28:13,776 --> 00:28:16,239 These hunters have got their eye on the kill 405 00:28:16,239 --> 00:28:18,089 of a female lion. 406 00:28:18,951 --> 00:28:21,831 It's a risky operation and their only chance 407 00:28:21,831 --> 00:28:23,841 is to work as a team. 408 00:28:24,764 --> 00:28:27,499 The pack attack with lightning speed. 409 00:28:28,156 --> 00:28:30,933 The lioness knows she is outnumbered. 410 00:28:32,774 --> 00:28:35,867 It takes at least four hyenas to drive a lioness 411 00:28:35,867 --> 00:28:37,616 from her kill. 412 00:28:37,616 --> 00:28:39,631 Against an adult male, 413 00:28:39,631 --> 00:28:41,812 they would stand little chance. 414 00:29:02,602 --> 00:29:05,425 As night falls on the Talek River, 415 00:29:05,425 --> 00:29:08,469 the scientists get ready for the late shift. 416 00:29:09,617 --> 00:29:11,846 Hyenas are mainly noctural 417 00:29:11,846 --> 00:29:14,161 and as more and more animals emerge, 418 00:29:14,161 --> 00:29:17,413 the activity activity around the den increases. 419 00:29:18,325 --> 00:29:20,160 With the help of spotlights, 420 00:29:20,160 --> 00:29:23,168 the team observe and record the interactions between 421 00:29:23,168 --> 00:29:24,953 clan members. 422 00:29:26,954 --> 00:29:31,370 Endor, who is the subordinate twin to Alderon 423 00:29:31,370 --> 00:29:34,958 is also wondering 15 meters from the den. 424 00:29:37,919 --> 00:29:40,511 Hyena societies are complex 425 00:29:40,511 --> 00:29:42,718 and it's all about who you know 426 00:29:42,718 --> 00:29:44,606 and who is your ally. 427 00:29:44,606 --> 00:29:48,216 It's a lesson the young cubs have to learn quickly. 428 00:29:50,526 --> 00:29:51,272 (mumbles) 429 00:29:51,272 --> 00:29:53,661 The clan are used to the research vehicle 430 00:29:53,661 --> 00:29:56,647 and take little notice of its inhabitants. 431 00:29:56,647 --> 00:29:58,172 Indeed something else 432 00:29:58,172 --> 00:30:00,640 seems to have attracted their attention. 433 00:30:04,614 --> 00:30:07,121 The recent rains have triggered the emergence 434 00:30:07,121 --> 00:30:08,847 of termites. 435 00:30:08,847 --> 00:30:12,569 It's a natural midnight snack for the hyenas, 436 00:30:12,569 --> 00:30:16,164 but the young cubs seem slightly disconcerted. 437 00:30:16,164 --> 00:30:18,003 (laughter) 438 00:30:19,054 --> 00:30:21,165 Yeah, it's great watching them eat the termites. 439 00:30:24,184 --> 00:30:27,991 It's not easy the first time you try it. 440 00:30:27,991 --> 00:30:31,863 And it takes some practice catching the flying prey. 441 00:30:31,863 --> 00:30:36,863 (laughter) 442 00:30:40,267 --> 00:30:42,432 Spotted hyenas are born apparently 443 00:30:42,432 --> 00:30:45,451 ready for action with a sharp set of teeth 444 00:30:45,451 --> 00:30:47,322 and wide open eyes. 445 00:30:47,979 --> 00:30:50,901 Nonetheless, these youngsters are no where near ready 446 00:30:50,901 --> 00:30:53,803 to hunt and will catch little more than a mouthful 447 00:30:53,803 --> 00:30:56,163 of termites in the coming year. 448 00:31:01,513 --> 00:31:04,969 Hyena mothers care for their cubs for up to four years. 449 00:31:04,969 --> 00:31:07,710 Much longer than most predators. 450 00:31:07,710 --> 00:31:09,186 Why is this so? 451 00:31:10,792 --> 00:31:13,074 Maybe a complex social system 452 00:31:13,074 --> 00:31:15,986 requires a longer period of learning. 453 00:31:15,986 --> 00:31:19,623 Or maybe their bone crushing jaws take several years 454 00:31:19,623 --> 00:31:21,260 to mature. 455 00:31:21,260 --> 00:31:23,211 One thing is certain, 456 00:31:23,211 --> 00:31:25,899 not until they're three to four years old, 457 00:31:25,899 --> 00:31:29,658 can young hyenas hunt and crack open bones. 458 00:31:31,435 --> 00:31:33,728 Kay believes that this could be the reason 459 00:31:33,728 --> 00:31:36,427 for their matriarchal society. 460 00:31:36,427 --> 00:31:38,816 Maybe females evolve to be dominant 461 00:31:38,816 --> 00:31:43,039 and more aggresive to protect and feed their cubs. 462 00:31:43,039 --> 00:31:44,852 So, we're leaving at 7:48. 463 00:31:44,852 --> 00:31:48,105 The team decide to head back to camp. 464 00:31:48,105 --> 00:31:51,081 In just a few hours, they'll be setting off once more 465 00:31:51,081 --> 00:31:53,982 to rejoin the hyenas at dawn. 466 00:31:53,982 --> 00:31:58,982 (pleasant classical music) 467 00:32:25,516 --> 00:32:27,543 In the early hours of the morning, 468 00:32:27,543 --> 00:32:30,619 mothers and cubs share intimate moments. 469 00:32:34,237 --> 00:32:37,298 And the indigestible remains of the evening meal 470 00:32:37,298 --> 00:32:39,965 are disposed of as small pellets. 471 00:32:41,983 --> 00:32:44,795 (hyena calls) 472 00:32:48,552 --> 00:32:51,453 The pellets have a pungent smell. 473 00:32:51,453 --> 00:32:54,999 And mother and sun roll in it to take on the scent. 474 00:32:55,635 --> 00:32:58,882 It seems to impress the other members of the clan. 475 00:33:00,921 --> 00:33:03,806 (hyena vocalizations) 476 00:33:03,806 --> 00:33:07,358 And social rank in the clan affects every aspect 477 00:33:07,358 --> 00:33:08,973 of hyena life. 478 00:33:09,598 --> 00:33:13,421 Cubs fight from birth for their place in the hierarchy. 479 00:33:18,440 --> 00:33:21,245 The status quo is regularly challenged. 480 00:33:21,245 --> 00:33:24,733 Pecking orders constantly change. 481 00:33:24,733 --> 00:33:27,261 Whatever may have caused this argument, 482 00:33:27,261 --> 00:33:30,141 it's all about power and status, 483 00:33:30,141 --> 00:33:32,509 and shifting alliances. 484 00:33:32,509 --> 00:33:36,486 (hyena vocalizations) 485 00:33:36,486 --> 00:33:38,481 It's a noisy affair. 486 00:33:38,481 --> 00:33:40,689 A complex social arrangement requires 487 00:33:40,689 --> 00:33:42,609 a complex language. 488 00:33:42,609 --> 00:33:45,883 And the huge variety of whoops, grunts, and giggles 489 00:33:45,883 --> 00:33:48,187 communicates their intentions. 490 00:33:48,187 --> 00:33:53,187 (hyena vocalizations) 491 00:34:04,559 --> 00:34:06,782 The power struggle is over. 492 00:34:07,428 --> 00:34:09,679 Having re-established their positions, 493 00:34:09,679 --> 00:34:12,254 the rivals bury the hatchet. 494 00:34:13,327 --> 00:34:17,544 At the end of the day, their survival depends on teamwork. 495 00:34:19,342 --> 00:34:23,033 Kay has learned the method behind the bickering. 496 00:34:23,033 --> 00:34:25,283 Yeah, I think if you actually look closely 497 00:34:25,283 --> 00:34:28,110 at the decisions that individual hyenas make about, 498 00:34:28,110 --> 00:34:30,947 for example, whether or not to help another animal 499 00:34:30,947 --> 00:34:32,664 when it needs helps. 500 00:34:32,664 --> 00:34:34,221 That tells you 501 00:34:34,221 --> 00:34:37,379 what complicated decision making processes 502 00:34:37,379 --> 00:34:39,138 are taking place in their heads. 503 00:34:39,138 --> 00:34:41,656 They're actually taking into consideration 504 00:34:41,656 --> 00:34:45,623 who the potential recipient of their help is. 505 00:34:45,623 --> 00:34:47,501 They're taking into consideration 506 00:34:47,501 --> 00:34:49,218 the other hyenas that are immediately present 507 00:34:49,218 --> 00:34:51,745 in their social environment for fear, perhaps, 508 00:34:51,745 --> 00:34:52,844 if they help this guy, 509 00:34:52,844 --> 00:34:55,798 then that guy will retaliate and bite me. 510 00:34:55,798 --> 00:34:57,313 They're taking into consideration 511 00:34:57,313 --> 00:34:59,510 the local ecological situation. 512 00:34:59,510 --> 00:35:01,440 They behave very differently when there's a lot of food 513 00:35:01,440 --> 00:35:03,040 versus when there's not. 514 00:35:03,040 --> 00:35:05,781 They're actually taking into consideration 515 00:35:05,781 --> 00:35:07,872 a phenomenal number of variables. 516 00:35:07,872 --> 00:35:09,242 It's really surprising. 517 00:35:10,080 --> 00:35:12,053 Hyena cubs have much to learn 518 00:35:12,053 --> 00:35:15,840 aside from social and political etiquette. 519 00:35:15,840 --> 00:35:18,271 This youngster is making his first encounter 520 00:35:18,271 --> 00:35:21,343 with potential prey, but it may still be 521 00:35:21,343 --> 00:35:23,939 slightly out of his league. 522 00:35:28,627 --> 00:35:31,422 His mother looks on anxiously. 523 00:35:31,422 --> 00:35:35,230 The tusks of a wild boar can inflict fatal injuries 524 00:35:35,230 --> 00:35:37,474 even on a fully grown lion. 525 00:35:40,168 --> 00:35:43,027 The youngster will do better to watch the adults 526 00:35:43,027 --> 00:35:45,154 and see how it's done. 527 00:35:49,758 --> 00:35:53,026 An adult female is eyeing up the situation. 528 00:35:58,557 --> 00:36:01,335 She's heading towards a herd of Topi. 529 00:36:03,666 --> 00:36:06,173 Most of the large grazers have seen the predator 530 00:36:06,173 --> 00:36:09,271 approach and are keeping a watchful eye. 531 00:36:13,640 --> 00:36:18,640 (ominous music) 532 00:36:30,112 --> 00:36:33,482 Her short sprints cause them little concern. 533 00:36:33,482 --> 00:36:36,910 They can easily outrun her with their long legs. 534 00:36:49,980 --> 00:36:53,649 But now, the hyena has detected an inattentive animal 535 00:36:53,649 --> 00:36:55,163 in the grass. 536 00:36:55,163 --> 00:36:57,194 This is her chance. 537 00:37:08,083 --> 00:37:11,256 A last minute escape for the Topi. 538 00:37:15,422 --> 00:37:18,835 It can run at speeds of 70 kilometers per hour 539 00:37:18,835 --> 00:37:22,541 and the hyena finally gives up the futile chase. 540 00:37:25,011 --> 00:37:27,912 But with a piece of skin ripped from its flanks, 541 00:37:27,912 --> 00:37:31,239 the antelope is lucky to have got away with its life. 542 00:37:31,239 --> 00:37:36,239 (slow classical music) 543 00:37:40,870 --> 00:37:44,721 Life in the African Savanna has been wooed for millenia 544 00:37:44,721 --> 00:37:47,398 by the cycles of rain and drought, 545 00:37:47,398 --> 00:37:49,941 of predators and prey. 546 00:38:04,601 --> 00:38:08,248 Today, the Masai Mara is a National Park. 547 00:38:08,248 --> 00:38:11,427 A protected island of grassland within a landscape 548 00:38:11,427 --> 00:38:13,629 of fields and villages. 549 00:38:14,605 --> 00:38:18,253 But neither the wildlife nor the Masai nomads 550 00:38:18,253 --> 00:38:21,479 and their cattle have enough space here. 551 00:38:25,357 --> 00:38:28,674 Not surprisingly, the Masai take their livestock 552 00:38:28,674 --> 00:38:30,348 into the protected areas 553 00:38:30,348 --> 00:38:33,025 because there's still enough grass here. 554 00:38:33,025 --> 00:38:35,173 It's a recipe for disaster. 555 00:38:39,595 --> 00:38:41,398 In the early hours of dawn, 556 00:38:41,398 --> 00:38:44,602 the Talek clan attack a herd of cattle. 557 00:38:54,239 --> 00:38:56,863 Kay Holycamp is following the hyenas 558 00:38:56,863 --> 00:38:58,969 and witnesses the event. 559 00:39:03,198 --> 00:39:07,235 The clan try to separate a single animal from the herd. 560 00:39:08,542 --> 00:39:10,877 The Masai herders arrive just in time 561 00:39:10,877 --> 00:39:13,405 to scare off the predators, 562 00:39:13,405 --> 00:39:16,513 but not all encounters end this way. 563 00:39:17,447 --> 00:39:20,657 If the hyenas had killed one of their cattle, 564 00:39:20,657 --> 00:39:23,221 the Masai would have sought revenge. 565 00:39:24,198 --> 00:39:26,619 There has been an enormous change with respect 566 00:39:26,619 --> 00:39:28,059 to livestock in the park. 567 00:39:28,059 --> 00:39:30,704 When we first started working here in the late 1980s, 568 00:39:30,704 --> 00:39:34,512 there was the occasional herd of 20 or 30 cows 569 00:39:34,512 --> 00:39:36,666 tucked very carefully and secretively 570 00:39:36,666 --> 00:39:39,759 down in the riverbed, and now there are tens of thousands 571 00:39:39,759 --> 00:39:41,615 of cows and 572 00:39:41,615 --> 00:39:43,940 tens and thousands of goats and sheep as well 573 00:39:43,940 --> 00:39:46,074 every single day out here on the plain. 574 00:39:46,074 --> 00:39:49,225 It's really tremendously disturbing to see it. 575 00:39:51,535 --> 00:39:53,935 The agricultural fields push right up 576 00:39:53,935 --> 00:39:55,834 to the park boundaries. 577 00:39:55,834 --> 00:39:59,130 And since the reserve was created in the 1960s, 578 00:39:59,130 --> 00:40:01,711 Kenya's population has grown from eight 579 00:40:01,711 --> 00:40:04,030 to over 40 million people. 580 00:40:04,964 --> 00:40:07,865 There are now suggestions to let the Masai into the park 581 00:40:07,865 --> 00:40:09,881 for periods of time. 582 00:40:09,881 --> 00:40:12,755 But whether this will help is not clear. 583 00:40:16,067 --> 00:40:18,094 They think we've started a very 584 00:40:18,094 --> 00:40:21,923 bad cycle in which the local pasturalists 585 00:40:21,923 --> 00:40:23,448 bring their livestock into the park. 586 00:40:23,448 --> 00:40:25,677 That drives the wild antelope away. 587 00:40:25,677 --> 00:40:27,234 The hyenas are left with very little food 588 00:40:27,234 --> 00:40:29,976 other than the livestock to prey upon 589 00:40:29,976 --> 00:40:31,576 and this is not only true for the hyenas, 590 00:40:31,576 --> 00:40:33,719 but also for the other large carnivores in the area. 591 00:40:33,719 --> 00:40:35,639 They either have to move, which is very difficult, 592 00:40:35,639 --> 00:40:37,079 because they all defend territories, 593 00:40:37,079 --> 00:40:39,052 and they can't just go where they want to. 594 00:40:39,052 --> 00:40:41,420 Or, they actually have to find something else to eat, 595 00:40:41,420 --> 00:40:43,276 and if the only thing to eat is livestock, 596 00:40:43,276 --> 00:40:46,508 that's going to cause more and more trouble, I'm afraid. 597 00:40:46,508 --> 00:40:48,343 The hyenas will ultimately lose this battle. 598 00:40:48,343 --> 00:40:50,107 We can be sure of that. 599 00:40:52,289 --> 00:40:55,052 National parks, such as the Masai Mara, 600 00:40:55,052 --> 00:40:58,437 are more than a nature reserve and tourist attraction. 601 00:40:59,211 --> 00:41:03,712 They are the last stronghold of Africa's true wilderness. 602 00:41:03,712 --> 00:41:06,176 If these final frontiers should fall, 603 00:41:06,176 --> 00:41:10,058 then Africa's large predators, including the hyena, 604 00:41:10,058 --> 00:41:12,703 have little chance of survival. 605 00:41:12,703 --> 00:41:17,703 (slow music) 606 00:41:28,194 --> 00:41:30,732 The Talek clan are attempting another attack 607 00:41:30,732 --> 00:41:32,348 on the herd of Topi. 608 00:41:35,074 --> 00:41:38,177 The persistent hunters are not easily discouraged 609 00:41:38,177 --> 00:41:41,600 and appear to have all the time in the world. 610 00:41:41,600 --> 00:41:44,064 They know they will eventually strike lucky 611 00:41:44,064 --> 00:41:47,957 when one of the antelope dozes for a second too long. 612 00:41:47,957 --> 00:41:52,957 (Topi vocalizations) 613 00:42:01,705 --> 00:42:03,929 Nearly, but not quite. 614 00:42:09,435 --> 00:42:12,752 This time, the hunter approaches from behind 615 00:42:12,752 --> 00:42:15,077 in the animal's blindspot. 616 00:42:18,787 --> 00:42:23,787 (ominous music) 617 00:42:32,195 --> 00:42:35,587 Whilst trying to break free, the unfortunate Topi 618 00:42:35,587 --> 00:42:38,381 has broken one of its hind legs. 619 00:42:38,381 --> 00:42:41,393 It's fate is now sealed. 620 00:43:00,417 --> 00:43:02,155 The Topi is down 621 00:43:02,155 --> 00:43:04,640 and reinforcement is on its way. 622 00:43:04,640 --> 00:43:09,640 (hyena vocalizations) 623 00:43:24,162 --> 00:43:26,410 The battle is over. 624 00:43:26,410 --> 00:43:29,332 But now, a different struggle begins. 625 00:43:33,630 --> 00:43:36,815 Dominant clan members get first choice at the kill, 626 00:43:36,815 --> 00:43:39,315 starting with the alpha female. 627 00:43:40,017 --> 00:43:41,959 But in the initial excitement, 628 00:43:41,959 --> 00:43:45,030 the buffet turns into a scrum, as everyone 629 00:43:45,030 --> 00:43:47,232 tries to get a piece of the meal. 630 00:43:49,094 --> 00:43:51,483 The mothers now need to assert their position 631 00:43:51,483 --> 00:43:55,178 at the kill and ensure their older cubs get a share. 632 00:43:56,173 --> 00:43:59,127 Hyenas don't carry food back to the den. 633 00:43:59,127 --> 00:44:00,844 And the growing youngsters need more 634 00:44:00,844 --> 00:44:02,521 than just their mother's milk. 635 00:44:02,521 --> 00:44:06,382 (hyena vocalizations) 636 00:44:06,382 --> 00:44:08,686 News of the feast spreads quickly 637 00:44:08,686 --> 00:44:11,737 and clan members now appear from every direction. 638 00:44:11,737 --> 00:44:16,737 (hyena vocalizations) 639 00:44:24,335 --> 00:44:26,639 The lowest ranking members of the clan 640 00:44:26,639 --> 00:44:30,820 especially the males, wait anxiously on the sidelines, 641 00:44:30,820 --> 00:44:34,941 hoping eventually, to get a turn at the dinner table. 642 00:44:37,891 --> 00:44:42,286 In less than an hour, the Topi has been entirely dismantled 643 00:44:42,286 --> 00:44:44,697 down to the last bone. 644 00:44:44,697 --> 00:44:47,406 It's hard to imagine a more efficient form 645 00:44:47,406 --> 00:44:49,192 of food processing. 646 00:44:51,331 --> 00:44:53,955 It's the uniqueness of hyena societies 647 00:44:53,955 --> 00:44:57,576 that so intrigue scientists like Kay Holycamp. 648 00:44:59,373 --> 00:45:02,755 To me they pose a very interesting biological puzzle. 649 00:45:02,755 --> 00:45:05,688 They actually appear to violate a lot of the basic rules 650 00:45:05,688 --> 00:45:08,216 of mammalian biology and I'm putting rules there 651 00:45:08,216 --> 00:45:10,743 in quotes because the fact that the hyenas appear 652 00:45:10,743 --> 00:45:13,068 to violate those rules suggest that those really 653 00:45:13,068 --> 00:45:15,831 aren't the rules at all, so 654 00:45:15,831 --> 00:45:18,497 what we thought historically makes a male mammal 655 00:45:18,497 --> 00:45:20,545 a male mammal, and a female a female. 656 00:45:20,545 --> 00:45:21,750 The hyenas appear to violate. 657 00:45:21,750 --> 00:45:24,332 The females are very heavily masculinized in some ways, 658 00:45:24,332 --> 00:45:26,070 but not others. 659 00:45:26,070 --> 00:45:29,899 What appears to be a typical mammalian carnivore 660 00:45:29,899 --> 00:45:32,033 social system is completely violated in a hyenas 661 00:45:32,033 --> 00:45:35,339 because they live in societies like baboon societies, 662 00:45:35,339 --> 00:45:37,675 not like lion societies or canid societies, 663 00:45:37,675 --> 00:45:39,008 or mongoose societies. 664 00:45:39,008 --> 00:45:41,579 So they violate these rules and a lot of ways that makes 665 00:45:41,579 --> 00:45:43,941 them a really fascinating puzzle. 666 00:45:45,131 --> 00:45:48,416 But how intelligent are hyenas. 667 00:45:48,416 --> 00:45:50,965 Kay's experiments are revealing that the much maligned 668 00:45:50,965 --> 00:45:54,335 scavengers are, in fact, rather clever. 669 00:45:54,335 --> 00:45:56,996 Maybe as clever as primates. 670 00:45:57,951 --> 00:46:00,596 Marked with a radio collar, Gucci, 671 00:46:00,596 --> 00:46:03,172 is a particularly intelligent female. 672 00:46:13,970 --> 00:46:16,871 This experiment is designed to test the problem 673 00:46:16,871 --> 00:46:20,161 solving skills and the memory of hyenas. 674 00:46:25,094 --> 00:46:28,939 Kay places a steel cage in the grass. 675 00:46:35,291 --> 00:46:38,470 Then she puts a piece of meat inside and the latch 676 00:46:38,470 --> 00:46:40,298 is bolted securely. 677 00:46:41,467 --> 00:46:43,536 The hyenas will smell the meet, 678 00:46:43,536 --> 00:46:45,727 but won't be able to reach it. 679 00:46:46,779 --> 00:46:50,244 The solid latch can't be opened accidentally. 680 00:46:50,244 --> 00:46:53,022 The animal has to know how it works. 681 00:46:55,119 --> 00:46:58,254 Then Kay drives the jeep to a safe distance to observe 682 00:46:58,254 --> 00:46:59,548 what happens. 683 00:47:00,109 --> 00:47:03,676 (mumbles) puzzle box at 8:10. 684 00:47:06,146 --> 00:47:07,404 Within a few minutes, 685 00:47:07,404 --> 00:47:10,118 Gucci approaches the cage. 686 00:47:11,841 --> 00:47:15,588 She learned to solve this problem a few years ago. 687 00:47:15,588 --> 00:47:18,619 Kay is intrigued to see whether she remembers. 688 00:47:25,153 --> 00:47:28,448 Many scientists believe that humans and primates 689 00:47:28,448 --> 00:47:31,488 and maybe also hyenas are more intelligent 690 00:47:31,488 --> 00:47:34,223 because they live in large social groups. 691 00:47:36,224 --> 00:47:38,965 Dealing with the challenges of a complex society 692 00:47:38,965 --> 00:47:43,300 requires social intelligence and the ability to learn. 693 00:47:51,900 --> 00:47:55,110 Gucci clearly knows there is a way into the cage 694 00:47:55,110 --> 00:47:58,027 and that the latch is the key to the solution. 695 00:48:07,269 --> 00:48:08,820 Come on Gucci. 696 00:48:13,028 --> 00:48:16,697 She's got the bolt (mumbles). 697 00:49:02,663 --> 00:49:05,382 Gucci has not only solved the problem, 698 00:49:05,382 --> 00:49:08,694 she's done it considerably quicker than the first time. 699 00:49:09,649 --> 00:49:11,712 It's an extraordinary achievement. 700 00:49:19,238 --> 00:49:22,491 A lion or cheetah would never have succeeded. 701 00:49:22,491 --> 00:49:25,882 But not all hyenas have managed either. 702 00:49:25,882 --> 00:49:29,519 So are they really as clever and resourceful as primates? 703 00:49:29,519 --> 00:49:32,766 Or are there just exceptional individuals? 704 00:49:35,353 --> 00:49:38,297 That's a question scientists have been trying to answer 705 00:49:38,297 --> 00:49:40,462 for years. 706 00:49:40,462 --> 00:49:43,481 Kay is convinced the hyenas have more surprises 707 00:49:43,481 --> 00:49:46,382 in store for her and her team 708 00:49:46,382 --> 00:49:49,091 and she has achieved much already. 709 00:49:49,091 --> 00:49:52,046 Thanks to Kay and others, the hyenas reputation 710 00:49:52,046 --> 00:49:55,597 as a primitive scavenger has been overturned. 711 00:49:55,597 --> 00:49:59,149 We now know them to be surprisingly social animals, 712 00:49:59,149 --> 00:50:01,308 and tender parents. 713 00:50:02,541 --> 00:50:06,839 There may be faster, bigger, and more powerful predators 714 00:50:06,839 --> 00:50:11,735 in the Savanna, but as a team, hyenas are one of Africa's 715 00:50:11,735 --> 00:50:14,871 most successful hunters. 716 00:50:14,871 --> 00:50:19,425 The hyena is truly the queen of the Masai Mara. 717 00:50:19,425 --> 00:50:24,425 (slow music) 54532

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