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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Researchers believe they were about ninety percent successful in recreating the appearance of the dinosaur.

VOA: special.2010.03.16

the dinosaur bones, and the animals and all of these like stuffed, these images behind glass of,

恐龙的骨头，以及这些被做成标本的动物，这些玻璃背后的形象，

自然历史博物馆 - SpeakingMax英语口语达人

and it's got the dinosaur section,

那儿有恐龙区域，

美术馆很多 - SpeakingMax英语口语达人

They form the centrepiece of a display on mammoths at the Dinosaur Museum in Dorchester.

BBC: Tim Batty, curator of the Dinosaur Museum, with the tusks

He had just half a day, so he began right away in the Dinosaur Halls.

NEWYORKER: In the Air

They determined that seventy-five per cent of the dinosaur was composed of original bone, as advertised.

NEWYORKER: Bones of Contention