Modern birds are dinosaurs.

现代鸟类是恐龙。

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Modern birds have higher metabolism rates than even the most agile Velociraptor ever had.

现代鸟类拥有比最敏捷的的迅猛龙还要高的新陈代谢率。

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Some ancient dinosaurs were indistinguishable from modern birds.

一些古代恐龙与现代鸟类是没有区别的。

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The researchers compared the structures to the melanosomes that control the color of feathers on modern birds.

VOA: special.2010.03.16

Many of these animals had feathers, much like our modern birds.

VOA: special.2010.06.04

This gives more weight to a very well-supported theory that modern birds evolved from theropods, the group of small carnivorous dinosaurs to which Sinosauropteryx belonged.

BBC: Dinosaur had ginger feathers

"Maybe they were larger in males, as we see in modern-day birds, " Persons said.

MSN: Why dinosaurs shook their tail feathers - Technology & science - Science - LiveScience | NBC News

In these characteristics, dinosaur bones are similar to those both of mammals and of dinosaurs' modern descendants, the birds, and dissimilar to those of both ancient and modern crocodiles.

ECONOMIST: Or, rather, the dinosaur and the crocodile