The four-legged whale is called Peregocetus pacificus, which in Latin means " the travelling whale that reached the Pacific Ocean" .

这种四条腿的鲸鱼被称为Peregocetus pacificus，在拉丁语中意思是游过太平洋的旅行鲸鱼。

This means pacificus nematodes actually are cannibals--they eat nematodes of their own species, but avoid their close relatives.

这意味着太平洋线虫实际上是食人者——它们吃同类的线虫，但避开它们的近亲。

When this sequence was changed through gene editing, the pacificus began to cannibalize its own family.

当通过基因编辑改变这个序列时，太平洋开始蚕食自己的家庭。

But when they blended the scent of pacificus with another species, the cannibal worms still preyed only on nematodes outside their family.

但是当它们将太平洋线虫的气味与另一种物种混合时，食人虫仍然只捕食它们家族以外的线虫。