标签：predator 相关文章
A pair of adult T-Rexes are on the hunt. 一对成年霸王龙出去狩猎。 They must leave their babies unguarded. 它们只能留下它们的孩子们。 The juveniles are unaware of approaching danger. 幼龙们没意识到正在接近的危险。
侏罗纪搏击俱乐部
Their jaws are a little bit different. That's how we tell these two animals apart. 它们的双颚也有些不同。这也被用来区分这两种动物。 Nanotyrannus has more teeth in its jaws. 矮暴龙的嘴里牙齿更多。 The teeth are prett
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It's no problem whatsoever, I can take you down. When T-Rex took prey down, it was fast and effective. 完全没问题，我能干掉你。霸王龙收拾猎物快速而有效。 This is an animal that could probably bite and chew up a Volkswagen. 这种
侏罗纪搏击俱乐部
What that small brain structure in Pachyrhinosaurus tells us is that the animals were probably not problem solvers. 肿鼻角龙很小的脑部结构告诉我们，这种动物很可能没有解决问题的能力。 They didn't have the capacity nece
侏罗纪搏击俱乐部
Then, the excavation took an unexpected turn. 之后，挖掘有了意外转折。 Scientists uncovered a second set of remains near the adult stegasaurus. 科学家们在一个成年剑龙附近发现了第二具骨骸。 It was a second stegasaurus
侏罗纪搏击俱乐部
Its name means horned lizard, not after the hornlets above its eyes, but rather for the blade-like appendage on its nose. 它的名字意为长角的蜥蜴，指的并不是其眼睛上面的角而是在鼻子上面刃状的附属物。 It's the only
侏罗纪搏击俱乐部
Scientists believe the problem was magnified by a fierce new predator who appeared on the scene, competing for what scarce food did remain. 科学家们相信让问题加剧的是新出现的一种厉害的掠食者，争夺所剩无几的食物。 O
侏罗纪搏击俱乐部
The Brygmophyseter was not without a weakness. 四贺鲸不是没有缺点。 Unlike Megalodon, it was unable to re-grow lost teeth. 它不像巨齿鲨，它无法长出掉落了的牙齿。 It did, however, have another weapon at its disposal. 但是，
侏罗纪搏击俱乐部
And they have the blemish both front and rear from a facet where the opposite tooth interlocked with it. 在牙齿前后的齿面都有缺陷就是与对面牙齿相交错的地方。 What happens is that the root is anchored well into the lower jaw.
侏罗纪搏击俱乐部
The bones tell us things like how big the animal was, whether they ate plants or meat, if it was fast or slow, but they don't tell us everything that actually happened. 这些骨头能让我们知道它们有多大，它们是吃肉还是植物，它们
侏罗纪搏击俱乐部
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
侏罗纪搏击俱乐部
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
侏罗纪搏击俱乐部
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
侏罗纪搏击俱乐部
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。
侏罗纪搏击俱乐部
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
侏罗纪搏击俱乐部
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
侏罗纪搏击俱乐部
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
侏罗纪搏击俱乐部
Australia's wild dog, the dingo is on the prowl. Today it hunts alone. A sign the dingo was probably on the lookout for small game. But it senses a larger opportunity, a baby kangaroo called Joey makes an excellent target. Its too big for his mother
国家地理2007年
It has transformed the landscape. Late winter in southern Yunnan is a busy time for local farmers as they prepare the age-old paddy fields ready for the coming spring. These hill slopes of Yunyang county plunge nearly 2,000 meters to the floor of the
英语听力：文化博览2008年
Roman sandal found at Hadrian's Wall looks just like David Beckham's football boot 2000多年前的罗马拖鞋跟小贝球鞋一模一样 Archaeologists were left stunned when they uncovered a near 2,000-year-old shoe which looks just like the Adida
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