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，" 郊狼是期霸王首个最佳记录。"

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

所以可能幼年霸王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、霸王到较小奇异、纤角、驰和伤齿等。

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

但三角有个致命弱点，它夜视能力无法与霸王相提论。

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。霸王要吃了你。还有来自天空死神。

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

矮会主动搜寻猎杀幼霸王。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，幼年霸王比成年霸王更瘦，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.

像小型帝和小型肉食恐侏罗猎这样恐拥有原始羽毛，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.

它们衰落意味着大型食肉动物， 如霸王，也注定要灭亡。

From a tyrannosaur we have the remains of muscle fibers.

我们从霸王那里得到了肌肉纤维遗骸。

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，不列颠哥伦比亚省科学家发现了由三只霸王排行走所制造行迹。

These were the tyrannosaurids, the largest of the tyrannosaurs.

这些是霸王，最大 霸王。

Here, I have the lower jaw of a tyrannosaur.

在这里，我有霸王下颚。

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

例如， 来自中国类恐羽王，在其皮肤毛囊中长出了细小绒毛。

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、伤齿和期霸王亲属共享一个环境，因此食肉动物之间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.

尽管霸王身上没有羽毛直接证据，但霸王很有可能至少有点毛茸茸，因为其他霸王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霸王甩尾巴，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.

但这也意味着霸王会更快疲倦。

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

让我们将其与这只霸王头骨进行对比。