Hummingbirds are the smallest birds. But what type of hummingbird is the smallest?

蜂鸟是最小鸟类。但是哪种蜂鸟最小呢？

Unlike the other hummers, swordbills can't reach their feathers with their beak.

不像其它蜂鸟，刀嘴蜂鸟喙够不到身上羽毛。

So kind of like a hummingbird wings.

有点像蜂鸟翅膀。

The Rufous hummingbird is around 7 centimetres.

红褐蜂鸟身长约7厘米。

It's kind of a hummingbird for one.

这蜂鸟个人骑。

A swordbill's extraordinary beak, however, enables it to reach the places that others can't.

然而，刀嘴蜂鸟喙同般，让它吃到其他蜂鸟无法触及。

Maybe even a couple of bumblebee bats and a bee hummingbird.

也许还有几大黄蜂蝙蝠和蜂鸟。

These Rufous Hummingbirds have migrated to the forest to breed.

这些棕蜂鸟已经迁徙到森林里来生活了。

I'll have to eat like a hummingbird just to keep from freezing to death.

我得像蜂鸟那样吃东西才不被冻死。

Let me show you how this hummingbird, this rotorcraft, works.

我们来看看“蜂鸟”是如何工作。

The smallest of the hummingbirds is the Bee which is native to Cuba.

蜂鸟中最小是原产于古巴吸蜂鸟。

It has found a solution that means it doesn't have to join the fight.

它找到了解决方法，不必和其它蜂鸟争夺食物。

You see, hummingbirds are not hypersonic, but they are maneuverable.

你知道，蜂鸟不是特超音速。但是操纵性很好。

In hummingbirds, these mutations allow this receptor to detect sugars, too.

在蜂鸟身上，这些突变也让这种受体够检测糖。

But, you ask, why are they called humming birds?

然而，您可会问，它们为何被称为蜂鸟呢？

But there's no way to learn to fly like a hummingbird unless you fly.

但是无法学会象蜂鸟样飞。除不停地学习飞行。

Lipperty-lipperty-lip he ran, while Hummer darted on ahead.

他蹦跳地跑着，蜂鸟也向前冲去。

There are animals with great appeal, Like the Hummingbird and the Harbor Seal.

这里有很多动物你看了都难忘掉，比如蜂鸟和斑海豹。

Why do hummingbirds have these amazing colors?

为什么蜂鸟有这些好看颜色？

Swordbills are the only bird with a beak longer than their body.

刀嘴蜂鸟是唯种喙长于身体鸟类。