Planet Dinosaur_ Ultimate Killers (2012).720p-EbP.English Movie Subtitles

1 00:00:12,600 --> 00:00:15,760 We are living through a dinosaur revolution. 2 00:00:18,041 --> 00:00:21,903 We have pushed the boundaries of our knowledge further than ever before. 3 00:00:28,470 --> 00:00:31,130 We have a completely new understanding 4 00:00:31,131 --> 00:00:34,249 of the greatest killers ever to walk the Earth. 5 00:01:05,464 --> 00:01:06,352 One killer, 6 00:01:06,965 --> 00:01:08,573 first discovered in Egypt, 7 00:01:09,271 --> 00:01:12,241 has become the icon of these new predators. 8 00:01:15,876 --> 00:01:17,477 A giant dinosaur 9 00:01:17,788 --> 00:01:21,254 with two-metre-long spines rising over its back. 10 00:01:21,515 --> 00:01:23,798 It was unlike anything seen before. 11 00:01:26,231 --> 00:01:30,693 It was only in 2005, when a complete upper jaw was found, 12 00:01:30,791 --> 00:01:34,256 that we could accurately reconstruct this bizarre creature. 13 00:01:35,719 --> 00:01:38,184 With a skull almost two metres long, 14 00:01:38,571 --> 00:01:43,517 this dinosaur was a colossal 17 metres from nose to tail. 15 00:01:44,449 --> 00:01:47,105 Four metres longer than T Rex. 16 00:01:51,864 --> 00:01:53,330 The reign of the dinosaurs 17 00:01:53,412 --> 00:01:56,962 began almost 250 million years ago. 18 00:01:58,601 --> 00:02:02,853 But this killer didn't appear until a time known as the Mid-Cretaceous. 19 00:02:04,419 --> 00:02:08,403 95 million years ago, its home in North Africa 20 00:02:09,361 --> 00:02:13,305 was a desert surrounding a vast system of rivers and swamps. 21 00:02:18,320 --> 00:02:22,227 The swamps are refuges for many large dinosaurs, 22 00:02:22,687 --> 00:02:24,699 like the duck-billed Ouranosaurus. 23 00:02:40,291 --> 00:02:42,971 They're also the hunting grounds for a killer. 24 00:04:27,770 --> 00:04:29,021 Spinosaurus. 25 00:04:33,296 --> 00:04:35,832 The biggest killer ever to walk the Earth. 26 00:04:37,513 --> 00:04:39,696 An 11-tonne colossus. 27 00:05:02,607 --> 00:05:06,090 However, for the time being, these Ouranosaurs 28 00:05:06,429 --> 00:05:08,179 are off this killer's menu. 29 00:05:16,786 --> 00:05:21,697 Spinosaurus is part of a relatively newly-discovered family of dinosaurs. 30 00:05:22,846 --> 00:05:25,892 They've been found in South America with Irritator, 31 00:05:26,378 --> 00:05:28,319 in Europe, there is Baryonyx 32 00:05:28,617 --> 00:05:30,535 and Asia, Siamosaurus. 33 00:05:32,060 --> 00:05:35,535 But the last and biggest of all came from North Africa. 34 00:05:36,068 --> 00:05:37,858 Spinosaurus itself. 35 00:05:41,984 --> 00:05:46,044 And studies of their bones and teeth revealed something amazing. 36 00:05:52,166 --> 00:05:54,157 Spinosaurus is a predator. 37 00:05:57,962 --> 00:05:59,665 But one that hunts in water. 38 00:06:21,091 --> 00:06:22,979 Spinosaurus is unique. 39 00:06:23,783 --> 00:06:27,747 With long, narrow jaws and nostrils set high on its head. 40 00:06:28,271 --> 00:06:30,511 Its teeth were straight and conical. 41 00:06:31,047 --> 00:06:34,160 And had a curious pattern of holes in its snout. 42 00:06:34,764 --> 00:06:36,765 Which give us a clue to how it hunted. 43 00:06:42,477 --> 00:06:44,411 These are Onchopristis. 44 00:06:45,635 --> 00:06:47,982 Eight-metre-long giant sawfish. 45 00:07:12,755 --> 00:07:17,996 In 2008, a Spinosaurus' skull was put through a CT scanner. 46 00:07:19,761 --> 00:07:22,724 It revealed that the holes and sinuses in the snout 47 00:07:22,728 --> 00:07:24,903 looked just like those of crocodiles. 48 00:07:25,791 --> 00:07:28,725 It's thought these contained pressure sensors. 49 00:07:30,523 --> 00:07:32,400 Sensors that, like a crocodile, 50 00:07:32,716 --> 00:07:34,778 can detect the movement of prey. 51 00:07:48,303 --> 00:07:50,993 It can strike without even seeing its victim. 52 00:08:35,387 --> 00:08:39,389 Anywhere else this eight-metre Rugops might be the top carnivore. 53 00:08:40,156 --> 00:08:43,523 But here, it is dwarfed by Spinosaurus. 54 00:08:47,111 --> 00:08:51,293 A predator that adapted to exploit an environment so successfully, 55 00:08:52,302 --> 00:08:55,420 it evolved into a 17-metre giant. 56 00:09:11,449 --> 00:09:15,423 Spinosaurus is the biggest dinosaur predator ever discovered. 57 00:09:16,420 --> 00:09:18,714 But it wasn't the first giant killer. 58 00:09:19,659 --> 00:09:23,174 The first giant killer dinosaurs appeared much earlier. 59 00:09:23,769 --> 00:09:27,759 They lived in the Jurassic period, 150 million years ago. 60 00:09:32,374 --> 00:09:35,137 One of the most iconic is Allosaurus, 61 00:09:35,397 --> 00:09:37,866 from the Morrison Formation in North America. 62 00:09:40,239 --> 00:09:43,159 Yet it's only recently that we've been able to work out, 63 00:09:43,361 --> 00:09:45,523 how these predators hunted. 64 00:09:57,331 --> 00:10:01,238 Allosaurus is the most common killer in these lands. 65 00:10:06,290 --> 00:10:10,331 Nine metres long, with a battery of saw blade-like teeth 66 00:10:10,719 --> 00:10:12,885 Allosaurus is a formidable hunter. 67 00:10:31,817 --> 00:10:35,083 A lone Camptosaurus should be an easy kill. 68 00:10:48,917 --> 00:10:52,350 Allosaurus teeth were serrated front and back, 69 00:10:52,601 --> 00:10:55,352 perfectly evolved for tearing through flesh. 70 00:10:58,277 --> 00:11:00,763 However, recent research has indicated 71 00:11:00,764 --> 00:11:03,765 that Allosaurus' b***e was surprisingly weak. 72 00:11:05,160 --> 00:11:09,224 Calculations suggested its b***e was less powerful than a lion's. 73 00:11:19,396 --> 00:11:23,303 So, just how did this Jurassic monster hunt and kill? 74 00:11:55,442 --> 00:11:58,528 Camptosaurus relies on its keen senses 75 00:11:58,530 --> 00:11:59,923 to avoid predators. 76 00:12:08,646 --> 00:12:13,740 Allosaurus on the other hand, is a fast and powerful ambush hunter. 77 00:13:41,069 --> 00:13:43,601 Despite the apparent weakness of its b***e, 78 00:13:43,625 --> 00:13:46,963 Allosaurus did in fact have a deadly killing method. 79 00:13:50,234 --> 00:13:52,345 Its skull could withstand a force 80 00:13:52,346 --> 00:13:55,036 more than 15 times as great as its b***e. 81 00:14:00,805 --> 00:14:04,282 This meant that Allosaurus used its head like an axe. 82 00:14:04,978 --> 00:14:09,126 Its strong neck muscles driving its top jaw into its prey. 83 00:14:10,702 --> 00:14:13,211 With every impact, the serrated teeth 84 00:14:13,213 --> 00:14:15,352 would tear through its prey's flesh. 85 00:14:20,732 --> 00:14:24,819 The victim dying, through a combination of shock and blood loss. 86 00:14:44,433 --> 00:14:45,869 Saurophaganax. 87 00:14:49,564 --> 00:14:53,818 At 12 metres, it is the biggest carnivore in the region. 88 00:15:23,834 --> 00:15:26,419 One of the advantages of being so big 89 00:15:26,485 --> 00:15:29,729 is that stealing another's kill is that much easier. 90 00:15:38,183 --> 00:15:40,592 With rise of giant predators 91 00:15:40,876 --> 00:15:43,523 and their spread throughout the Jurassic world 92 00:15:43,950 --> 00:15:47,057 smaller dinosaurs needed new strategies 93 00:15:47,202 --> 00:15:48,730 if they were to survive. 94 00:15:51,170 --> 00:15:53,876 In recent years, China has been the focus 95 00:15:53,877 --> 00:15:56,172 of some remarkable fossil discoveries. 96 00:15:59,142 --> 00:16:01,509 One extraordinary fossil hints 97 00:16:01,511 --> 00:16:05,216 how some may have avoided these killer dinosaurs. 98 00:16:07,880 --> 00:16:10,275 It lived in the Jurassic forest of China 99 00:16:10,602 --> 00:16:13,467 a 154 million years ago. 100 00:16:19,995 --> 00:16:23,722 Hiding in these lush forests is Epidexipteryx. 101 00:16:43,143 --> 00:16:45,575 This forest is home to many predators 102 00:16:45,674 --> 00:16:48,066 and being small makes it vulnerable. 103 00:17:23,025 --> 00:17:24,717 This is Sinraptor. 104 00:17:27,480 --> 00:17:30,196 A small dinosaur like Epidexipteryx 105 00:17:30,734 --> 00:17:33,488 would be of no interest to a seven-metre adult. 106 00:17:35,470 --> 00:17:37,181 But this is a juvenile. 107 00:18:30,928 --> 00:18:33,446 Being small does have its advantages. 108 00:18:36,537 --> 00:18:38,866 Everything we know about Epidexipteryx 109 00:18:39,170 --> 00:18:41,138 comes from an incredible fossil, 110 00:18:41,604 --> 00:18:43,832 first revealed in 2008. 111 00:18:46,236 --> 00:18:50,458 It showed an animal with a small skull and large eye sockets, 112 00:18:50,995 --> 00:18:53,247 and unusually long teeth. 113 00:18:57,298 --> 00:18:59,830 With toes suited to gripping branches 114 00:19:00,098 --> 00:19:02,284 and very long arms and hands, 115 00:19:02,929 --> 00:19:07,198 it suggests that this was a dinosaur well suited to living in the trees. 116 00:19:11,979 --> 00:19:15,630 The extraordinary, elongated third finger 117 00:19:15,978 --> 00:19:18,302 is another distinctive feature of the group. 118 00:19:21,213 --> 00:19:24,083 With this and its projecting front teeth, 119 00:19:24,402 --> 00:19:28,920 Epidexipteryx has the perfect tools to hunt for insects. 120 00:20:04,666 --> 00:20:08,494 Prey like this, which is difficult to catch, is quite a prize. 121 00:20:17,012 --> 00:20:19,890 A prize that can attract unwanted attention. 122 00:20:21,071 --> 00:20:24,300 Here it's another, larger, Epidexipteryx. 123 00:20:46,162 --> 00:20:49,638 There is...