Specimens from all over the world come in, still encased in the rock or mud where they were found, and it's the job of the fossil preparators to get the skulls, femurs and teeth out.
世界各地的标本在被运到这里时，还被密封在岩石或发现源地的污泥之中，只有经过化石准备工作以后，那些头颅、股骨和牙齿才能显露出来。
Discovering direct evidence of what a fossil animal ate, rather than having to infer it from details such as the shape of its teeth, is always valuable.
发现一种动物以何为食的直接证据非常的有价值，我们不用再从它们的牙齿形状来推测它们吃什么了。
The sand around him was strewn with fossil shark teeth, sea urchin spines, and the bones of giant catfish.
四周的沙粒，散落着鲨鱼牙齿、海胆脊椎、巨型鲶鱼的化石。
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