There is a weapon called a humane killer, but it is not a human killer.

有一种武器叫做人道杀手，但它不是人道杀手。

Like humans, killer whales have colonized a range of different habitats across the globe, occupying every ocean basin on the planet, with an empire that extends from pole to pole.

正如人类那样，虎鲸在全球开拓了许多不同的栖息地，占领了这一星球的所有海洋盆地，拥有一个从南极延伸到北极的王国。