棘龙的牙齿和霸王龙的牙齿完全不同。
Spinosaurus teeth and tyrannosaurus teeth were completely different.
这是一条长吻鄂，可能是地球上有史以来最大的陆地食肉动物，比霸王龙还要大。
It's a gharial, perhaps the largest terrestrial carnivore ever to walk the earth, larger than T-Rex.
在中国发现的相当于小型雷克斯霸王龙原型的东西，对有关恐龙进化的理论提出了质疑。
The discovery in China of what amounts to a miniature prototype of Tyrannosaurus rex calls into question theories about the dinosaur's evolution.
结果，历经数百万年间的自然选择，形成了我们今日熟知的异特龙和雷克斯霸王龙族群。
The result, once natural selection had done its work over the course of millions of years, was the now familiar cast of Allosaurus and Tyrannosaurus rex.
蒙大拿州立大学的古生物学家霍纳怀疑那些短暴龙的遗骸可能属于一只年轻的雷克斯霸王龙。
Horner, a paleontologist at Montana State University, suspects the remains of Nanotyrranus may belong to a young Tyrannosaurus rex.
早期的兽脚亚目食肉恐龙，包括从迅猛龙到霸王龙在内的所有肉食物种，抢占了地盘并茁壮成长。
Early therapods, the group of dinosaurs that includes all meat-eating species from Velociraptor to Tyrannosaurus rex, gained ground and thrived.
北美西部晚期的坎帕阶霸王龙的化石记录存在地理差异。
The fossil record of late Campanian tyrannosauroids of western North America has a geographic gap.
新发现的化石证明霸王龙残食同类
New fossil evidence supports that Tyrannosaurus rex was a cannibal.
伦敦自然历史博物馆的霸王龙模型。
A Tyrannosaurus rex model at the Natural History Museum in London.
比霸王龙拥有更多牙齿的新生代。
霸王龙的尾部是独一无二的。
像霸王龙一样牙齿咯吱作响的恐龙，一看就是食肉动物。
Some, like tyrannosaurus rex with its bone-crunching teeth, are obviously predators.
保守估计，霸王龙的二头肌有430磅的曲力。
“The bicep alone—and this is a conservative estimate—could curl 430 pounds, ” Conrad says.
几乎没有什么化石能像霸王龙化石那样让人敬畏。
霸王龙学不会摔跤的招数，也许你能在这上面赢过它。
"The T. rex probably couldn't have done the arm-wrestling move," Conrad says. "So maybe you could get him on a technicality."
霸王龙学不会摔跤的招数，也许你能在这上面赢过它。
“The T. rex probably couldn’t have done the arm-wrestling move,” Conrad says. “So maybe you could get him on a technicality。”
坚利的牙齿和下颚说明这只霸王龙肯定是个可怕的猎手。
With its powerful jaws and teeth, T-Rex was a terrifying predator.
Longrich发现一具霸王龙的化石上有许多大大的牙印。
Longrich discovered a t. rex fossil with large tooth gouges in it.
这只上龙的头比霸王龙的大一倍，满口是令人印象深刻12英寸长的巨齿。
The pliosaur's head was twice as big as that of a Tyrannosaurus rex and was filled with an impressive set of 12-inch teeth.
如果事实真如此，他，她或者它，将不会是现在新闻中报道的唯一新霸王龙。
If so, he, she or it would not be the only new tyrannosaur in the news at the moment.
这片骨测得宽为15厘米，是所知的上龙中最大的，比霸王龙的大一倍。
The bone measured 15cm across, making it the largest of any pliosaur known, and twice the size of the same bone in T. rex.
和霸王龙比赛掰手腕，有很严的规则，吃了对手这种事是绝对不允许发生的。
Right. This is a sanctioned match, and killing your opponent is strictly against the rules.
这些足迹仍非常清晰，而且深陷在砂岩河床上，似乎这只霸王龙上个星期才刚走过一样。
The imprint is well defined and deeply embedded in the sandstone riverbed, as if the tyrannosaur had walked there only last week.
对现场寻获的骨骼进行测量表明，这一新发现物种的体型是霸王龙的百分之一。
Measurements of bones recovered from the site reveal that the new species was one hundredth the size of T-rex.
霸王龙不太可能是草食动物，但是这个蜥蜴之王到底吃那种动物却是个更难解的谜。
T. rex was unlikely to have been a herbivore. But which animals the tyrant lizard actually ate is a far harder nut to crack.
一些现代的食肉动物，例如狮子和鬣狗，均是集体捕猎，但是霸王龙却喜欢独来独往。
Some large modern carnivores, such as lions and hyenas, do hunt in organized groups, but T. rex individuals likely acted on their own.
霸王龙是肉食动物的最强的论据之一是它的尖牙尖锐而锋利，跟今天的肉食动物极其相似。
One of the strongest arguments for T. rex being a predator is that its fangs are sharp and pointed, rather like the teeth found in many predators today.
依据该动物的颌骨计算表明，它能以15万牛顿的力度把猎物咬伤，咀嚼力度是霸王龙的四倍。
Calculations based on the animal's jaw bones suggest it could have bitten into its prey with a force of 150 kilonewtons, or four times the force thought to be exerted by the jaws of a T. rex.
结果，历经数百万年间的自然选择，形成了我们今日熟知的异特龙、梁龙、三角龙和霸王龙族群。
The result, once natural selection had done its work over the course of millions of years, was the now familiar cast of Allosaurus, Diplodocus, Triceratops and Tyrannosaurus rex.
过去的一年里，发现了六个新霸王龙物种。而在过去的十年里所知道的霸王龙种类是之前的两倍多。
But in the past year half a dozen new tyrannosaur species have been described, and during the past decade the known diversity of tyrannosaurs has more than doubled.
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