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
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
As investigators studied the large serrated teeth of the giant shark, they discovered the massive power of its bite - a force of 20 tons. 在调查者研究这些巨鲨的大型锯齿状牙齿时,他们发现了它巨大的咬合力可达二十吨。
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
Along with its massive size, powerful jaws and dagger-like teeth, investigators discovered something else. 除了其巨大体型,有力的双颌以及匕首般的牙齿之外,调查者发现了其他的事情。 Megalodon stalked its prey with an
Megalodon. The largest carnivorous fish ever to prowl the oceans. 巨齿鲨。海洋中出现过的最大的掠食性鱼类。 Megalodon as a species, it receives a lot of interest. 巨齿鲨这个物种,引发了很多人的兴趣。 It is the clo
Incredibly, whales are closely related to hoofed animals, in particular, the pig and the hippo. 很难相信,鲸类跟有蹄类动物的关系非常接近,特别是,猪和河马。 55 million years, the actual evolutionary origins of whales and
One Allosaurus moved off to flank the unsuspecting Ceratosaurus. 一头异特龙离开绕向毫无防备的角鼻龙侧面。 The rest headed to center stage. 其余的前往主战场。 The Ceratosaurus is out numbered and scientists now know it was
Allosaurus are cooperative hunters. 异特龙是合作猎手。 So as two of them move down to take on their adversary head-on, the third moves off in a different direction in an effort to outflankthe Ceratosaurus. 两头异特龙从正面向对手靠近
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
This was typical with plant eaters, but less commonly seen in predators before this time. 这在植食性动物中很典型,不过在此前的掠食者中并不常见。 What's interesting with Allosaurus, we find large accumulations of Allosaurus'
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
In 2007, paleontologists of Manchester University made a breakthrough discovery. 在2007年,曼彻斯特大学的古生物学家们取得了一项突破性的发现。 By studying the leg bones, musculature and mechanics behind them, they were able
We can look at modern jaguar to see animals that sort of play the same role that Ceratosaurus does. 我们可以参考现代的美洲豹,来看一看差不多扮演着角鼻龙角色的动物。 Jaguars take on medium to smaller prey, but it's hesi
Being faster and more agile than your prey was an important attribute, but the ability to ambush prey was a even more lethal hunting strategy. 比猎物更快更灵活十分重要的品质,但伏击猎物是一个更为致命的狩猎策略。 Pred
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
We see the same sort of behavior among lions where the male will simply act as a distraction to drive prey towards the awaiting female. 我们在狮群中见到类似行为雄狮只是起干扰作用把猎物赶向等待着的雌性。 It's a great w
He knows where the ambush spot is. 他知道伏击的地点。 He stops because he doesn't see her. 他停了下来因为他没有见到她。 The male stops his charge, adopting a slower pace and a more defensive posture. 雄角鼻龙停止了他的冲
Ceratosaurus moves quickly around and leaps into the air, landing on the side of the Allosaurus. 他迅速地绕过去一跃而起,落到异特龙的侧面。 The Allosaurus is looking to kill this animal, not to chase him away, but to kill him. 而异
They were the elite, the predators that ruled the earth. 它们是精英,是统治地球的掠食者。 They ranged from the giant T-Rex, who relied on size and long curved teeth, to the smaller Raptors, who used speed and cunning. 它们中有霸王
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