Suskityrannus is the first really good record of the early tyrannosaurs in North America, he wrote in an email.

他在电邮中写道，" 郊狼暴是北早期的首个最佳记录。"

So perhaps the young tyrannosaurs were using their arms more to tackle prey.

所以可能幼年是用前爪来对付猎物。

So far, Druckenmiller and his team have dug up species from seven different dino families: from big duck-billed dinos, ceretopsians, and tyrannosaurs to smaller thescelosaurs, leptoceratops, dromaeosaurs, and troodontids.

迄今为止，Druckenmiller 和他团队已经挖掘出7类恐：从大型鸭嘴恐、角、到较小的奇异、纤角、驰和伤齿等。

But Triceratops has one major disadvantage. lts night vision is no match for a tyrannosaur.

但三角有个致命的弱点，它的夜视能力无法与相提论。

There were Raptors hunting you. There were Tyrannosaurs hunting you. And there was death from the sky.

猛禽类恐在追捕你。要吃了你。还有来自天空的死神。

Nanotyrannus actively hunts and kills young Tyrannosaurs. Not to eat, but to get rid of the competition.

矮暴会主动搜寻猎杀幼。不是为了食物而是要消灭竞争对手。

We now know that juvenile tyrannosaurs were much slimmer and lightly built than the adults, with arms slightly more in proportion with the rest of their body.

我们知道，幼年比成年更瘦，体格也更小，这时小前爪就和它身体其余部分更协调。

Dinos like the small tyrannosaur Dilong and the tiny carnivore Juravenator had protofeathers with a central stalk that branched off near the top.

像小型的暴帝和小型肉食恐侏罗猎这样的恐拥有原始羽毛，这些羽毛有一个中央茎，在顶部附近分枝。

And their decline meant that the large carnivores, like the tyrannosaurs, were doomed as well.

它们的衰落意味着大型食肉动物， 如，也注定要灭亡。

From a tyrannosaur we have the remains of muscle fibers.

我们从那里得到了肌肉纤维的遗骸。

Van Bijlert:  And to do that, we found a fossilized trackway of a smaller tyrannosaur.

范·比尔特：为了做到这一点，我们发现了一条较小的暴的化石足迹。

In 2014, scientists in British Columbia discovered trackways made by three Tyrannosaurs that had all been walking side by side.

2014年，不列颠哥伦比亚省的家发现了由三只排行走所制造的行迹。

These were the tyrannosaurids, the largest of the tyrannosaurs.

这些是，最大 的。

Here, I have the lower jaw of a tyrannosaur.

在这里，我有的下颚。

For example, Yutyrannus, a tyrannosaur from China, had little wisps that grew from follicles in its skin.

例如， 来自中国的暴类恐羽，在其皮肤的毛囊中长出了细小的绒毛。

Falcarius shared an environment with a host of dromaeosaurs, troodontids, and early tyrannosaur relatives, so competitive pressure among carnivores was likely pretty high.

Falcarius 与许多驰、伤齿和早期亲属共享一个环境，因此食肉动物之间的竞争压力可能相当高。

Even though there's no direct evidence of feathers on T. rex, there's a good chance the tyrant king was at least a little fluffy, because other tyrannosaurs have been found with protofeathers.

尽管身上没有羽毛的直接证据，但很有可能至少有点毛茸茸，因为其他也被发现有原始羽毛。

If euplocephalus swings its tail at a tyrannosaur like gorgosaurus, but the tail snaps in half, then that would cause a lot of trouble for euplocephalus.

如果真头对着蛇发女妖之类的甩尾巴，结果尾巴折成两半，那可会给真头头带来不少麻烦。

But it also means that the tyrannosaur would tire out more quickly.

但这也意味着会更快疲倦。

Let's contrast that with the skull of this tyrannosaur.

让我们将其与这只的头骨进行对比。