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并论。

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。

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，" 郊狼暴龙是北美早期霸王龙的首个最佳记录。"

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。不是为了食物而是要消灭竞争对手。

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

它们的衰落意味食肉动物， 如霸王龙，也注定要灭亡。

These were the tyrannosaurids, the largest of the tyrannosaurs.

这些是霸王龙，最 的霸王龙。

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。

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。

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龙的化石足迹。

Large theropods like tyrannosaurs, could have reached adult size in 20 years.

霸王龙等兽脚类动物可能在 20 年内达到成年体。

There are actually four separate tyrannosaur species here.

这里实际上有四种不同的霸王龙。

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并排行走所制造的行迹。

Although dinosaurs and mammals are not closely related, a human arm has the same bones as those of a tyrannosaur.

虽然恐龙和哺乳动物的亲缘关系并不密切，但人类手臂的骨骼与霸王龙的骨骼相同。

Similarly, in dinosaurs like tyrannosaurs, the tibia was much longer than the femur in the juveniles.

同样，在霸王龙这样的恐龙中，幼年时期的胫骨比股骨长得多。

In most carnivorous dinosaurs, like tyrannosaurs, it attached high up, near the hips.

在多数食肉恐龙中，如霸王龙，它附在臀附近的高处。

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

但这也意味霸王龙会更快疲倦。

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、伤齿龙和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。

Unlike tyrannosaurs, the length of the ceratopsian hind leg don't change as much.

与霸王龙不同，角龙类后腿的长度变化不。

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

像小的暴龙帝龙和小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，在顶附近分枝。