This tight-knit bond between algae and corals is what makes reefs so incredibly productive.

藻类和珊瑚虫之间的这种紧，就是珊瑚礁生产力如此惊人的原因所在。

Coral is actually the eco skeletons of coral polyps made of limestone.

珊瑚实际上是由石灰岩构成的珊瑚虫的生态骨架。

The polyps that make up the stony corals are among the winners of climate change.

构成石珊瑚的珊瑚虫是气候变化的赢家之一。

Again, what we're seeing here is blue light hitting this image.

我们这所看到的是，蓝色 光照在珊瑚虫的图像 。

They're a symbiotic duo, a partnership, between an algae and a coral.

珊瑚是共生体，是海藻和珊瑚虫之间的合作关。

At the heart of reef ecosystems lies a symbiosis between corals and algae.

珊瑚礁生态统的核心是珊瑚虫和藻类的共生关。

They do this so that they can eat the coral polyps and algae inside.

这样它们就能吃到珊瑚虫和面的海藻了。

A small piece of coral may be made of hundreds of polyps.

一小片珊瑚可能都是由上百个珊瑚虫构成的。

Together, colonies of polyps produce large three-dimensional structures, which form the basis of an underwater metropolis.

成群的珊瑚虫一起制造出立体的结构，就有了水下都市的基础。

Pip saw the multitudinous, God-omnipresent, coral insects, that out of the firmament of waters heaved the colossal orbs.

皮普看见了无数上帝一般无所不在的珊瑚虫，从水的天穹中升起的巨大星体。

The answer is starfish. The crown-of-thorns starfish preys on coral and large outbreaks of these starfish can devastate reefs.

正确答案是海星。棘冠星鱼会捕食珊瑚虫，大量的海星会摧毁珊瑚。

Which of these invertebrates is an anthozoan known for its stony skeleton?

以下哪种无脊椎动物是以石质骨骼着称的珊瑚虫？

Corals are groups of small organisms called polyps.

珊瑚是由称为珊瑚虫的小型生物群体组成的。

Amazing to think that big, colorful reefs all start with these teeny tiny polyps.

令人惊讶的是，庞大的五彩珊瑚礁竟都是从这些微小的珊瑚虫开始的。

Coral is made of tiny transparent animals called polyps, with thousands of them in each chunk.

珊瑚由微小的透明动物珊瑚虫组成，每块珊瑚中都有成千上万的珊瑚虫。

But it's actually made up of animals called polyps.

但实际上它是由称为珊瑚虫的动物组成的。

These polyps make hard exoskeletons around their soft bodies.

这些珊瑚虫在其柔软的身体周围形成了坚硬的外骨骼。

It's made up of tiny polyps that grow tough little armor-like skeletons around themselves.

它由微小的珊瑚虫构成，这些珊瑚虫会在自己周围生长出坚硬如盔甲般的小骨骼。

It's coral polyps, and within that that coral structure that's kind of a hive or kind of the house for the coral polyps.

这是珊瑚虫，在这个珊瑚结构面是珊瑚虫的蜂巢或房子。

The top of each polyp has little tentacles, like an octopus.

每个珊瑚虫的顶部都有小小的触手，就像章鱼一样。