不管海豚科动物多么聪明,相信它们具有救生的动机可能是错误的。
However intelligent they may be, it is probably a mistake to credit dolphins with any motive of lifesaving.
虽然有些人把这些名称交替使用,鼠海豚科实际上是一个更大的群体,其中还包括像虎鲸和白鲸等动物。
Although some people use these names interchangeably, porpoises are actually a larger group that also includes animals like the orca and the beluga whale.
应用推荐