Unlike Ambulocetus, it's not a member of the immediate whale family, but it shares a common ancestor with them, helping to connect today's artiodactyls.

行游泳鲸不同， 它不是鲸目动物的直系成员，但它它们共享一个共同祖先，有助于连接今天的目动物。

And that feature is only found in artiodactyls.

而那个特征仅存在于目动物中。

And these comparisons showed that cetaceans are actually most closely related to a group known as artiodactyls, hoofed mammals that includes hippos, pigs, and deer.

这些比较显示，鲸目动物实际上一类被称目的哺乳动物关系最密切，目包括河马、猪和鹿等有类动物。

In other words, if Ambulocetus represents the transition from land to water, then Indohyus represents the transition from artiodactyls to whales.

换句话说， 如果 Ambulocetus 代表从陆到水的过渡，那么 Indohyus 代表从动物到鲸鱼的过渡。

Some very early cetaceans have this ankle bone, too, which tells us that cetaceans evolved from artiodactyls.

一些非常早期的鲸目动物也有这种距骨，这告诉我们鲸目动物是从目动物进化而来的。