If you said, Beaver, put your tails up.

如果你回答，海狸，请把尾巴翘起来。

Others like greyhounds tuck their tails.

还有些狗，比如格雷伊猎犬，它们尾巴是夹起来。

I suspect lambs can shake their tails very fast.

我猜小快速地摇动尾巴。

They insist on moving around and swishing their tails.

它们一直在动来动去并且甩着尾巴。

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

在非洲和亚洲，猴子尾巴...就只是尾巴。

Coloured coats, curly tails and floppy ears.

不同花皮毛，卷曲尾巴，松软耳朵。

So where are their special tails?

那他们尾巴怎麽不特别？

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

彗星上气体和尘埃形成了两个不同尾巴。

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

于是没有青蛙终于长出了四条，它们尾巴消失了。

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

可是，那些狗只会摇尾巴，猫也只会发出呼噜声。

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

识别狗尾巴摇摆不同高度和类型重要。

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尾巴原因。

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

一群罕见蝎子有时会折断尾巴以逃避捕食者。

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

外观上它们都有浓密棕皮毛，它们有长长尾巴，并且它们跳来跳去。

They bask in the light, swishing their tails.

它们在阳光下晒着，甩着尾巴。

Muscular tails strike with the power of sledgehammers.

强壮尾巴一击如同重锤。

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

他们剪断一些飞蛾后翅叶和尾端。

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

今天，我们知道人类胚胎尾巴会随着胚胎发育而被溶解。

So why do dogs chase their tails?

那么狗为什么要追尾巴呢？

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，感觉满足时候会摇尾巴？