The unarguable fact that most palaeontologists live in the rich world means two things.

大多数古生物学家生活在富裕世界可争议事实意件事。

Nevertheless, this tooth is the first unarguable proof that crocodilians did indeed snack on dinosaurs.

但可争辩是，颗牙是第个鳄鱼目动物拿恐龙当点心证据。