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An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

化的一个例子是鸟类在兽角亚目的恐龙化期的出现。

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经济学人-科技

Frequently, these were taken by theropods.

这些恐经常被兽脚亚目食肉恐捕食。

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VOA Special 2023年9月

These sizes are exceptional among theropods.

这种型在兽脚亚目恐中是罕见的。

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经济学人-科技

Instead of theropod footmarks, they found those of crocodilians.

他们发现的是鳄鱼的足迹,而不是兽脚的。

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VOA Special 2023年3月

Some small theropods grew quickly and others grew slowly.

有些小型兽脚亚目恐生长得很快,而另一些则生长缓慢。

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VOA慢速英语_世界

Natovenator is part of the dinosaur group called theropods.

非鸟兽脚是被称为兽脚亚目恐的一部分。

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VOA慢速英语_世界

He believes there will be more discoveries of peculiar theropods in the future.

他相信未来还会发现更多奇特的兽脚亚目恐

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VOA Special 2023年9月

The theropod group includes all the meat-eating dinosaurs like Tyrannosaurus.

兽脚亚目恐包括所有诸如暴的食肉恐

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自然历史博物馆

We've described a new theropod dinosaur species, we called it Pendraig milnerae.

我们已经描述了一种新兽脚亚目恐,我们命名它为 Pendraig milnerae。

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VOA Special 2023年9月

Birds evolved from a grouping of dinosaurs known as theropods in the late Jurassic.

鸟是从侏罗纪晚期的兽脚亚目恐进化而来的。

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经济学人-科技

But that does not completely explain the absence of theropod tracks.

但这并不能完全解释兽脚亚目食肉恐的缺位。

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透视百科综

Like the theropods, these titans used air sacs to breathe and had light, hollow bones.

像兽脚亚目一样,这些巨人使用气囊来呼吸,而且有很轻的中空骨骼。

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经济学人-科技

In that sort of environment even a big theropod would constantly have been looking over its shoulder.

在那样一种环境下,即便是一头巨大的兽脚亚目食肉恐也会不时回头张望。

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VOA Special 2023年9月

But, the animal's closest relatives and almost all bird-like theropods have feathers.

但是,这种动物的近亲和几乎所有形似鸟的兽脚亚目恐都有羽毛。

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VOA慢速英语_世界

He said, " The diversity of theropod dinosaurs by the end of the Cretaceous is totally amazing."

“到白垩纪末,兽脚亚目恐的多样性令人惊叹。”

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VOA慢速英语_科技

All the known sets of prints that show speed come from a family of dinosaurs called theropods.

所有已知的能测出速度的脚印都来自兽足亚目恐家族。

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透视百科综

While Triceratops and Stegosaurus grew up to eight meters long, bird-like theropods like Tyrannosaurus grew twice as large.

当三角和剑长到八公尺长时,像暴这样的兽脚亚目长了两倍大。

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VOA Special 2023年3月

D'Emic told Reuters news agency the latest research " overturns" past thinking about the growth of theropods.

德埃米克告诉路透社,最新的研究“颠覆了”过去关于兽脚亚目恐生长的想法。

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侏罗纪搏击俱乐部

Unfortunately, for Majungasaurus and most theropod dinosaurs, we don't have a lot of specimens to work with.

很遗憾的是对于玛君和多数兽脚来说我们都没有很多标本。

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VOA Special 2023年3月

Acrocanthosaurus – which is a bit smaller than T. rex – was an example of a big but slow-growing theropod.

高棘--比霸王稍小一点——是大型但生长缓慢的兽脚亚目恐的一个例子。

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TED演讲(视频版) 2017年5月

This here is a theropod, it's called a sea butterfly.

这是一只兽脚亚目动物, 叫做海蝴蝶。

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