标签：侏罗纪 相关文章
In 1996, 25 miles from the city of Mahajanga in northwest Madagascar, paleontologist were working on a routine excavation. 1996年，在离马达加斯加西北的马哈姜嘎市不到四十公里处古生物学家们在做例行挖掘。 But as they
英语第1级听力-English Level 1
When it comes to attacking an adversary, the sexes were probably different. 在向对手的攻击上两性之间可能不同。 The male refined his hunting skills to capture prey or suitable mate. 雄性通过捕食猎物和追求配偶来完善自己
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The rotting corpse of a juvenile Tyrannosaurus Rex laid buried beneath mud carried in from some prehistoric river. 幼年雷克斯暴龙腐烂的尸体被史前河流冲走并且埋在泥里。 The hypothesis is that two T-Rexes were in a fight and o
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Maybe this juvenile was killed by a member of its own family. 也许这头幼龙是被自家的成员杀死的。 The tooth design of Tyrannosaurus Rex is very distinctive and therefore leaves very distinctive marks on the bones. 雷克斯暴龙的牙齿
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It would probably quickly weaken and lead to death to anything that got the bite on. 这样能够使被咬的猎物迅速衰弱直到死亡。 The bites on these animals're really very powerful and they not only simply could bite out a big chunk of m
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Tyrannosaurus-Rex may have ruled the Cretaceous, but Allosaurus was the king of Jurassic. 霸王龙也许统治了白垩纪，但异特龙才是侏罗纪的王者。 While any environment that we have on earth today we have a top predator, Allosaurus
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Megalodon, fossils are found in the kind of geologic deposits that form pretty close to shore. 能在离海岸非常近的地质沉淀物中，发现巨齿鲨的化石。 So, as far as we know, it was not a deep water kind of species or an open ocean
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Over the last several hundred years, thousands of prehistoric whale bones have been found with deep gashes sliced into them. 在过去数百年间，人们发现了数千块史前鲸骨上面划有深深的沟痕。 They're found on ribs, vertebra, t
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egalodon, 50 tons of pure menace in the body of a monster shark, dwarfing today's Great White. 巨齿鲨，体重达五十吨，这怪兽般的鲨鱼无比凶残，让现在的大白鲨相形见绌。 Step by step, science expands the evidence to sho
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With Camarasaurus, it's operating purely by instinct. 对于圆顶龙它完全靠本能行动。 They also discovered that the Camarasaurus would have sent out a distress call which Allosaurus would pick up and recognize. 人们还发现圆顶龙会发
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Allosaurus was built to move at good pace compared to other dinosaurs. 异特龙跟其它恐龙相比移动速度出色。 Some experts estimate they could run as fast as twenty miles an hour. 有些专家估计它们能跑到时速三十多公里。
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The Gastonia's limited brain focuses on only one thing at a time. Now it's water. 加斯顿龙有限的大脑一次只关注一件事。现在轮到水了。 Utahraptor has terrific vision, sharper than any humans. 犹他盗龙有上好的视力，比任
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Its first defense was its armored hips. 它的首要防护是有护甲的髋部。 One of the interesting things about Gastonia is it does have a big solid plate over its hips. 加斯顿龙有趣的事情之一是它髋部确实有一块大而结实的
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Armored dinosaurs would not become common until tens of millions of years after the Gastonia lived. 在加斯顿龙出现后数千万年后甲龙才变得普遍。 Paleontologist Dr. James Kirkland was called in to analyze the find. 古生物学家詹姆
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Gastonia, built like a prehistoric tank, it's body covered in armor. 加斯顿龙，身上披盔戴甲仿若史前坦克。 Huge spikes jutted from its back and its tail worked like a chainsaw. 它的背后支出巨大尖刺尾巴简直如同链锯。
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Utahraptor stood 3 meters tall and weighed over half a ton, which made it a top predator of the middle Cretaceous period. 犹他盗龙站立时高三米，体重达半吨，这使其成为白垩纪中期的一个顶级掠食者。 The Raptor family i
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Cats are basically designed as hunt-and-kill predators. 猫科动物基本是猎杀型掠食者。 They are carnivores, that's what they do as carnivores, is they chase things down and kill them. 它们是食肉动物，这类食肉动物追赶猎物然
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As the ice caps melted, temperatures began to rise. 随着冰盖的融化，气温开始升高。 Plant life that had adapted to colder climates died on a large scale. 已经适应更寒冷气候的植物大批死去。 The result was a mass migratio
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It was perfectly able to use its claws with extreme dexterity. 它对爪子的使用相当灵巧，得心应手。 He can swing those paws like a professional baseball player can swing a bat, and when he hits you, he's gonna hit you with an incredibl
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Science and technology 科学技术 Ancient animal behaviour 远古动物行为 Jurassic lark 侏罗纪雨燕 How the pterosaur caught its supper 翼龙是如何逮到晚餐的 PALAEOETHOLOGY, working out how long-extinct animals behaved, is a subjec
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