One place these pioneering organisms may have emerged is at hydrothermal vents, deep underwater.

这些先驱生物出现其中一个地方是海热泉和海。

Both toothed and baleen whales often hunt by diving deep-prey being more abundant at depth.

鲸和须鲸通常都潜入海捕食，因为海里猎物更多。

Deep dives are important because of a major gap in human understanding of the deep oceans.

海潜水很重要，因为人类对海认识有很大差距。

You'd have to go out into the deep sea to find more dangerous animals.

海有更多危险动物。

But scanning the deep ocean isn't easy.

但是扫描海并不容易。

Listen to this hydrothermal vent deep under the ocean.

听一听来自海热液喷口。

Inner space is almost as hard to explore as outer space.

探太空难，察海亦不易。

What if, in the deeps of the ocean, the Kraken was prowling?

如果挪威海怪正在海潜行？

A long way out in the deep blue sea there lived a fish.

在湛海中住着一只鱼。

That's why our Deep Sea Adventure is better for you!

所以我们海探险之旅更适合你！

Squid shoot up from the depths to feed near the surface.

乌贼从海游上来靠近海面寻找食物。

He said vehicles that can dive deep into the ocean are rare.

他说，能潜入海载具非常罕见。

The deep ocean is full of strange life forms that we know very little about.

海充满了我们知之甚少奇怪生命形式。

The dead fish include rare species that live in deep water, far from land.

包括远离陆地生活在海中珍稀鱼类。

Then they got into a boat and rowed far out to the deep water.

接着他们上了一艘船，划向了海。

One of my goals was to return to enable deep-ocean science.

我目标之一是回归海洋，探索海学。

Of course, the discovery of deep-sea species proved him wrong.

当然，海物种发现证明他是错。

As with deep water, it's a battle to stay in deep time.

就像水一样，这是一场留在海战斗。

There's a deep-sea bat-fish looking like a baby Yoda thingy.

这是一条看起来像是婴儿尤达海蝙蝠鱼。

For the past year, they've been feeding in deeper waters.

在过去一年里，它们一直在海里觅食。