And that feature is only found in artiodactyls.

而征仅存在于偶蹄目动中。

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

一些非常早期的目动也有这种距骨，这告诉我们目动是从偶蹄目动进化而来的。

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 代表从陆地水的过渡，么 Indohyus 代表从偶蹄动鱼的过渡。

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，目动实际上与一类被称为偶蹄目的哺乳动关系最密切，偶蹄目包括河马、猪和鹿等有蹄类动。

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.

与步行游泳不同， 它不是目动的直系成员，但它与它们共享一共同祖先，有助于连接今天的偶蹄目动。