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，" 郊狼暴龙是北美早期霸王龙的首个最佳记录。"

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

所以可能幼年霸王龙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，Druckenmiller 他团队已经挖掘出7类恐龙：从大型鸭嘴恐龙、角龙、霸王龙到较小的奇异龙、纤角龙、驰龙伤齿龙等。

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

但三角龙有个致命的弱点，它的夜视能力无法与霸王龙相提论。

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

猛禽类恐龙在追捕你。霸王龙要吃了你。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.

矮暴龙会主动搜寻猎杀幼霸王龙。不是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，幼年霸王龙比成年霸王龙更瘦，体格也更小，这时小前爪就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.

像小型的暴龙帝龙小型肉食恐龙侏罗猎龙这样的恐龙拥有原始羽毛，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， 如霸王龙，也注定要灭亡。

From a tyrannosaur we have the remains of muscle fibers.

我们从霸王龙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：了做到这一点，我们发现了一条较小的暴龙的化石足迹。

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科学家发现了由三只霸王龙排行走所制造的行迹。

These were the tyrannosaurids, the largest of the tyrannosaurs.

这些是霸王龙，最大 的霸王龙。

Here, I have the lower jaw of a tyrannosaur.

在这里，我有霸王龙的下颚。

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

例如， 来自中国的暴龙类恐龙羽王龙，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 与许多驰龙、伤齿龙早期霸王龙亲属共享一个环境，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.

尽管霸王龙身上没有羽毛的直接证据，但霸王龙很有可能至少有点毛茸茸，因其他霸王龙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.

如果真头龙对着蛇发女妖之类的霸王龙甩尾巴，结果尾巴折成两半，那可会给真头头龙带来不少麻烦。

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

但这也意味着霸王龙会更快疲倦。

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

让我们将其与这只霸王龙的头骨进行对比。