Other species of canids — dogs, wolves — hunt in packs, but her life is a lonely one.

其他的犬科动物——狗、狼，都是群体狩猎，但是鬃狼却是孤军作战。

So do certain canids and crows.

某些犬科动物和乌鸦也是如此。

Not everyone's convinced that Prohesperocyon was a canid, though.

不过，并非所有人都相信 Prohesperocyon 是犬科动物。

But other groups, like canids, bears, and whales, were fully fledged.

但其他群体，如犬科动物、熊和 鲸鱼，已经完全成熟。

These canids are relatively small, at about  60 cm in length and weighing just over 3kg.

这些犬科动物相对较小，长约 60 厘米，重量仅超过 3 公斤。

Their scientific name, vulpes  lagopus means hare-footed fox, as this furry pad adaptation  is unique among canids.

它们的学名 vulpes lagopus 意思是兔足狐，因为这种毛茸茸的垫子适应性在犬科动物中是独一无二的。

Today there are 34 species of canids, from the leggy maned wolf to the big-eared fennec fox.

今天有 34 种犬科动物，从长腿鬃狼到大耳耳廓狐。

One species in this genus—Epicyon haydeni—was the biggest of the big, thought to be the largest canid of all time.

该属中的一个物种——Epicyon haydeni——是大型犬科动物中最大的，被认为是有史以来最大的犬科动物。

The only important thing that Epicyon has in common with your golden retriever or whatever is that they're both canids.

Epicyon 与您的金毛猎犬或其他任何动物的唯一重要共同点是它们都是犬科动物。

So two out of the three canid subfamilies are dead and gone.

所以犬科动物的三个亚科中有两个已经死去。