Of course, as land creatures, they no longer need their gills.

当然，成陆生动物，它们就不再需要鳃。

So, how about growing bigger gills to allow for more oxygen intake?

那要是通过长出更大的鱼鳃来摄入更多氧气呢？

Some animals, such as the Mexican salamander, have their gills on the outside.

有些动物，如墨西哥蝾螈，它们的鳃在外面。

First, there were gills. But gills, of course, still only work inside of water.

首先是鳃。当然，鳃仍然只在水中工作。

Pardon me, do you have gills, ma'am?

你有鳃吗 夫人?

An Atlantic bluefin gets oxygen from cold ocean water using its gills.

蓝金枪鱼通过鳃从冰冷的海水中滤出氧气。

Fish have gills and live in the water.

鱼有鱼鳃，住在水里。

Underside of the gills are even brighter purple.

菌褶的下面是更深的紫色。

Teeth, gills, vertebrae, or dorsal fin?

牙齿、鳃、脊椎骨还是背？

They use these organs called book lungs that are essentially gills, they've just moved inside the body.

它们使用这些叫做书肺的器，这些器上是鳃，它们在体内移动。

She's got gills. But no, it's amazing.

她好像有腮 开玩笑的 但确很厉害。

So, gills would, in fact, would change our lives.

所以，事上，鳃会改变我们的生活。

Filtering it from the seawater with their gill rakers.

用它们的鳃耙过滤海水中的浮游生物。

You're just happy you don't have gills anymore.

你应该庆幸你不会再有鳃。

Even though they left aquatic life behind millions of years ago, woodlice still use their gills to breathe today.

即便数百万年前潮虫已离开水生环境，但它们今天依然用鳃呼吸。

This shark is a fish. Fish have internal gills to get oxygen out the water as they swim along.

这条鲨鱼是一种鱼。鱼有内部鳃，当它们游泳时可以将氧气排出水中。

But gills are not the only respiratory system aquatic insect can have.

不过鳃并不是水生昆虫唯一用来呼吸的器。

After 16 hours, all the crabs had plastic lodged in their gills.

16个小时后，在它们的腮部都会留存有塑料微粒。

Scientists have also documented how the salamander can breathe with lungs and gills.

家还记录蝾螈是如何用肺和鳃呼吸的。

And here we thought gills were only for gaseous exchange.

我们以为鳃只是用来交换气体的。