and lick your belly button.

舔到自己的肚臍！

Turns out that would be an easy feat for a frog

事實上，如果青蛙有肚臍的話，

if they actually had belly buttons.

這對牠們來說很簡單。

A frog's tongue is one-third of its body length,

青蛙的舌頭是身高的三分之一長，

and that's just the start of this miraculous body part.

這還只是這個神奇身體部位的開端而已！

That long tongue is covered with thousands of mucus glands,

長長的舌頭佈滿黏液腺，

which secrete some of the stickiest spit on Earth.

可以分泌出世界上最黏稠的唾液。

In fact, when researchers studied

事實上，2014 年研究人員在

horned frog saliva in 2014,

研究角蛙唾液時

they found these frogs could lift 1.4 times

發現牠們可以用黏黏的舌頭

their own body weight with their sticky tongues.

舉起比自己體重重1.4 倍的重量。

That's like a human lifting a refrigerator

這就好像是人類用舌頭

with their tongue!

舉起了冰箱！

Because of this,

正因如此，

frogs don't go whipping out their tongues for fun,

青蛙不會因為好玩而吐舌頭，

but when they finally do,

當牠們真的吐了舌頭，

it can grab a meal straight out of the air.

就可以從空中抓取一頓美食。

You see, although frogs can't fly,

雖然青蛙不能飛，

many hunt some of the fleetest, most agile winged animals

牠門還是會獵捕飛得最快、翅膀最靈活的動物，

like flies, moths, and dragonflies.

例如：蒼蠅、蛾和蜻蜓。

They don't even have to chase their meals.

牠們甚至不用去追捕牠們的食物。

They just sit and wait.

只需要坐著等待。

It's even more impressive when you consider

當你想到蒼蠅比其他動物經歷的時間更慢時，

that flies experience time more slowly than other animals.

你就會更加驚艷。

Each second feels like four seconds to a fly,

對蒼蠅來說，一秒等同於四秒，

so they have all the time in the world

所以牠們有足夠的時間

to escape a predator.

來逃離獵捕者。

Just think about the last time you tried swatting a fly.

想想你上次試著打蒼蠅的景象，

Not so easy, right?

不是很容易，對吧？

Well, frogs have a trick up their sleeve:

但是，青蛙有一個壓箱寶：

an ultra-fast tongue.

超級快的舌頭。

Their tongue is made of two powerful muscle groups:

牠們的舌頭由兩個強壯的肌群組成，

an extender and a retractor.

伸展肌群及牽引肌群。

The extender fires the tongue towards its prey

伸展肌群向獵物吐出舌頭，

at an astounding 4 meters per second.

速度驚人地高達每秒四公尺。

At the same time, the frog flicks its jaws open,

同時，青蛙張開雙顎，

which rotates the tongue as it fires,

旋轉舌頭，

like a speeding bullet.

就像一顆高速的子彈。

Bam!

蹦！

Before you can blink, it's all over.

在你眨眼之前，就已經結束了。

Researchers found that frogs can snatch their prey

研究員發現青蛙可以在 0.07 秒內

in under .07 seconds,

捕捉到獵物，

five times faster than you can blink.

比你眨眼的速度還快五倍！

But speed isn't a frog's only weapon.

但速度不是青蛙唯一的武器。

A frog's tongue is 10 times softer than ours,

青蛙的舌頭比人類的還要柔軟十倍，

about as pliable as your brain, in fact.

事實上，大概就像大腦一樣柔軟。

And this softness makes it super flexible

這種柔軟度讓舌頭超級有彈性，

so it can wrap itself around its victim,

所以可以纏繞住獵物，

slathering the fly with a super sticky saliva,

在蒼蠅身上裹上大量超級黏稠的口水，

trapping it in place like glue.

像膠水一樣把蒼蠅困住。

This fly is going nowhere.

這樣蒼蠅就逃不了了！

All that's left to do is reel it in.

接著只需要把舌頭捲回來。

The frog's retractor muscle yanks on the tongue,

青蛙的牽引肌群猛拉舌頭，

which zooms backwards like a bungee chord.

像高空彈跳繩索般向後收回。

Within 15/100s of a second,

0.15 秒內，

it disappears back into the mouth.

舌頭就消失在嘴巴裡了。

To dislodge its prize, the frog sucks its eyeballs

為了解開獵物，青蛙將眼睛

back into its head.

縮回腦袋裡。

That pressure slides the prey off its tongue,

這股力量讓獵物從舌頭上滑下來，

ready to be swallowed whole.

準備好被整個吞掉！

Gulp!

咕嚕！

G-g-gulp!

咕～咕～嚕！