It was just a few animal fossils.

只是一些动物化石。

Prior to 560m years ago, animal fossils are rare.

6亿年以前的动物化石寥寥无几。

He added that it is about 2 million years older than another widely accepted animal fossil.

他补充说，狄更逊水母比另一种普遍认可的动物化石早存在近200万年。

A piece of history has been found thanks to a boy tripping on a rare, 1.2-million-year-old animal fossil.

一块拥有 120 万年历史的稀有动物化石将一个小男孩绊倒了，人类的一段历史由此被揭晓。

Anyway, Harris says that the reason we find animal fossils in the tar pits is because the animals, when they were alive, got stuck in the pits.

无论如何，哈里斯说我们在沥青坑中发现动物化石的原因是因为动物在活着的时候被卡在了坑里。

But very, very rarely, they’ll find an animal fossil that includes actual fossilized soft tissue, because the animal was buried quickly enough for its soft tissue to fossilize before it decayed.

但非常、非常罕见的是， 他们会发现包含实际软组织化石的动物化石，因为动物被掩埋的速度足够快， 软组织在腐烂前就可以变成化石。