许多物种似乎在数百万年的化石记录中都保持不变——而这种情况似乎与达尔文的持续变化模型不一致。

Many species appear to remain unchanged in the fossil record for millions of years—a situation that seems to be at odds with Darwin's model of continuous change.

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至少，有一个研究小组根据化石建造了一个身体模型，然后将其放到一个风道里。

And at least one group has built a physical model based on fossils and put it in a wind tunnel.

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在巨骨室的一处角落里，一块看起来相对不那么古老的石膏模型上标着“头颅”字样，它被摆在了几张老照片的前面，而照片里的博物馆工作人员手里拿着的正是同一块相似的化石。

In a corner of the Big Bone Room, a relatively fresh-looking plaster cast marked "Skull" sat in front of old photos of museum staff handling similar fossils.

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