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这争议事实两件事。

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

但争辩是，这颗牙是第个鳄鱼目动物拿恐龙当点心证据。