What's the connection between bird and dinosaur behavior?
鸟类和恐龙的行为之间有什么联系呢？
Also, they were an extremely successful kind of dinosaur.
并且，它们作为恐龙而言是很成功的。
Why did scientists want more information about the dinosaur extinctions?
为什么科学家们想要了解更多关于恐龙灭绝的信息？
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