If you said, Beaver, put your tails up.

如果你回答，海狸，请把巴翘起来。

Others like greyhounds tuck their tails.

还有些狗，比如格雷伊猎犬，它们的巴是夹起来的。

I suspect lambs can shake their tails very fast.

我猜小羊能很快速地摇动巴。

They insist on moving around and swishing their tails.

它们一直在动来动去并且巴。

In Africa and Asia, monkeys’ tails are just...tails.

在非洲和亚洲，猴子的巴...就只是巴。

Coloured coats, curly tails and floppy ears.

不同花的皮毛，卷曲的巴，松软的耳朵。

So where are their special tails?

那他们的巴怎麽不特别？

The gas and the dust from comets form two different tails.

的气体和尘埃形成了两个不同的巴。

Then, the legless frogs gradually lost their tails and grew four legs.

于是没有腿的青蛙终于长出了四条腿，它们的巴消失了。

But the dogs only wagged their tails and the cats only purred.

可是，那些狗只会摇巴，猫也只会发出呼噜声。

It's important to recognize that different breeds carry their tails at different heights.

识别狗巴摇摆的不同高度和类型很重要。

That's why puppies tend to chase their tails more than adult dogs.

这就是为什么小狗比成年狗更喜欢追逐巴的原因。

A rare group of scorpions will sometimes break off their tails to escape predators.

一群罕见的蝎子有时会折断巴以逃避捕食者。

And physically they've got thick brown fur, they've got long tails and they hop around.

外观它们都有浓密的棕的皮毛，它们有长长的巴，并且它们跳来跳去。

They bask in the light, swishing their tails.

它们在阳光下晒，巴。

Muscular tails strike with the power of sledgehammers.

强壮的巴一击如同重锤。

With some moths they snipped the hind wing lobes and tails.

他们剪断一些飞蛾的后翅叶和端。

Today, we know human embryos have tails that dissolve as the embryo develops.

今天，我们知道人类胚胎的巴会随胚胎的发育而被溶解。

So why do dogs chase their tails?

那么狗为什么要追巴呢？

Why do cats wag their tails while sitting next to their owners and feeling completely satisfied?

为什么猫坐在主人旁边，感觉很满足的时候会摇巴？