someone who studies fossils as a way of getting information about the history of life on Earth

No palaeontologist has any clue as to what a living dinosaur actually looked like. 活恐龙长得什么样，古生物学家都毫无线索。

Palaeontologists can now look inside fossils without damaging them. 古生物学家现在可以观察化石内部而不损伤石头。