With the horrific death of their mother , the ornithopod clan faces constant danger searching for a place where they can settle .
由於它们母亲的惨死,鸟脚龙家族必须面对固定的危险,所以要寻找能够让它们安顿下来的一个地方。
It was not a large tooth . Its size suggests the animal which made it was no more than a metre and a half ( about 5 feet ) long . Such a predator would have been unable to take on an adult ornithopod .
Such a predator would have been unable to take on an adult ornithopod . Nevertheless , this tooth is the first unarguable proof that crocodilians did indeed snack on dinosaurs .