It had been mummified, then fossilized.

它先是木乃伊化，然后变石化。

A meteorite from Mars has fossilized structures that look suspiciously like small bacteria.

一颗来自火星的陨石有着看起来像微小细菌的化石。

So it appears this sucker died and fossilized with a bellyful of blood—the only known specimen.

如此看来这家伙是带着一肚子的血液死后变成化石的—这是唯一已知的标本。

But the critters were fossilized together in ways that suggest they sought out each others' company.

但这些动物以一起变成化石的方式表明它们互相寻找伴侣。

Behavior doesn't fossilize like bone, and so we have to look at modern animals as a way to understand how dinosaurs may have behaved.

行为不会变成化石流传，所以我们要观察现代动物，以此来了解恐龙可能的行为。

Taphonomy is basically looking at what happened to a fossil from the time of death of an animal until it actually is buried and fossilized.

埋葬基本上是研究古生物从死亡到被埋葬成为化石而被保存下来的。

Experts say since most tumors form in soft tissue that does not easily fossilize, there is little evidence of cancer in the fossil record.

专家表示由于大部分肿瘤形成在不会轻易石化的柔软组织里，所以在化石中很少有癌症存在的迹象。

Many of the sharks, do get bony cartilage vertebrae which do in fact fossilize which is contrary to common belief.

很多鲨鱼的确会有能够形成化石的骨化的硬质脊椎，这跟一般所认为的相反。

Sometimes, that gel was stuck in bones or bits of wood that had already started to fossilize, so the silica trapped in there formed opals in the shape of those organic structures.

有时，这种凝胶留存在骨骼中或是少量已经开始变成化石的木材里，所以保留在那里的二氧化硅构成了那些有机结构的欧泊。