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

其他的科动物——狗、狼，都是群体狩猎，但是鬃狼却是孤军作战。

2.So do certain canids and crows.

某些科动物和乌鸦也是如此。机翻

3.Like other truly wild canids, it displays unique behaviors.

与其他真正野生的科动物一样，它表现出独特的行为。机翻

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

所科动物的三个亚科中有两个已经死去。机翻

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

但其他群体，如科动物、熊和 鲸鱼，已经完全成熟。

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

这些科动物相对较小，长约 60 厘米，重量仅超过 3 公斤。机翻

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

它们的名 vulpes lagopus 意思是兔足狐，因为这的垫子适应性在科动物中是独一无二的。机翻

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

不过，并非所有人都相信 Prohesperocyon 是科动物。机翻

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

Epicyon 与您的金猎或其他任何动物的唯一重要共同点是它们都是科动物。机翻

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

今天有 34 科动物，从长腿鬃狼到大耳耳廓狐。机翻

11.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——Epicyon haydeni——是大型科动物中最大的，被认为是有史来最大的科动物。机翻

12.So, the dingo is a unique Australian animal, a wild canid and an apex predator essential for the health of Australia's ecosystem.

因此，澳洲野狗是澳大利亚独有的动物、野生科动物和对澳大利亚生态系统健康至关重要的顶级捕食者。机翻

13.Today canids include wolves, foxes, coyotes and dogs, all over the world.

今天，科动物包括世界各地的狼、狐狸、土狼和狗。机翻

14.Because, just like cats, they had fully retractable claws, a trait that canids eventually lost.

因为，就像猫一样，它们有完全可伸缩的爪子，科动物最终失去了这一特征。机翻

15.But in canids, they're especially big, and it's thought that these extra large spaces help dogs and wolves hear low-frequency sounds.

但在科动物中， 它们特别大，人们认为这些超大空间有助于狗和狼听到低频声音。机翻

16.But around 30 million years ago, a new subfamily of canids appeared: Caninae, or canines, the true dogs.

但大约 3000 万年前， 出现了一个新的科动物亚科：Caninae，或科动物， 真正的狗。机翻

17.Bovids, equids and, in particular, canids, were put to work by H.sapiens; felids always took a slightly different view of the matter, but were indulged for their rodent-catching talents.

牛科动物、马科动物，尤其是科动物，都是由智人分工的；猫科动物略有不同，但受宠的原因主要是捕捉啮齿类生物的天性。

18.And the biggest canids that ever lived were the borophagines, also known as the bone-crushing dogs, which I've talked about before.

有史来最大的科动物是 borophagines，也被称为碎骨，我之前已经谈过。机翻

19.Canids have hollow bony structures toward the back of their skulls called auditory bullae that protect the delicate bones of the middle ear.

科动物的头骨后部有中空的骨结构，称为听觉大泡，可保护中耳的脆弱骨骼。机翻

20.If anything, dogs resemble juvenile rather than fully adult canids, a sort of arrested development which accounts for the way they remain dependent on their human owners throughout their lives.

如果说狗与科动物确有相似性，那么也只是像未成年而非成年科动物。这类似发育停滞的现象可解释狗为何一生都如此依 赖主人。