Then there's the invertebrates that can get even smaller!

还有椎动物可以变得更小！

Invertebrates are animals that do not have backbones.

椎动物则没有。

So specifically, fish as well as aquatic invertebrates.

特别是鱼类和水生椎动物。”

And I'm reviewing my knowledge of invertebrate zoology.

我还在回想有椎动物学的知识。

Oysters are soft-bodied invertebrates belonging to the phylum mollusca.

牡蛎是软体动物门的软体椎动物。

The two largest groups of animals are vertebrates and invertbrates.

最大的两个类别是椎动物和椎动物。

Which of these sea creatures is the largest invertebrate on Earth?

以海洋生物是地球上最大的椎动物？

Most of the animals in the world are invertebrates.

绝大部分动物都是椎动物。

Basically we collect data on fish, invertebrates, coral and coral diseases.

我们会收集有鱼类、椎动物、珊瑚和珊瑚疾病的数据。

Insects are invertebrates, or animals that do not have backbones.

昆虫没有椎，是椎动物。

Multiple species of coral, multiple species of fish, invertebrates, all living happily together.

多珊瑚，多鱼类，椎动物，都快乐地生活在一起。

It's the world's largest invertebrate, which is an animal with no backbone.

它是世界上最大的椎动物，也就是没有椎的动物。

Invertebrates like snapping shrimp, fish and marine mammals all use sound.

诸如虾之类的椎动物、 鱼类，以及海洋哺乳动物都使用声音。

But if a brain has to be inside of a skull, can invertebrates have brains at all?

但是如果大脑必须在头骨里，椎动物真的有大脑吗？

What aquatic soft-bodied invertebrates have growth rings similar to tree trunks that can determine their age?

些水生软体椎动物的生长年轮与树干相似，可以确定其年龄？

Multiple species coral, multiple species of fish, invertebrates, all living happily together.

各式各样的珊瑚，多多样的鱼、椎动物，都快乐地生活在一起。

They can make a home for invertebrates, crustaceans, fish, and sea snakes to name a few.

它们可以为椎动物、甲壳类动物、鱼以及海蛇等海洋生物提供栖息之地。

Pearls form when mollusks such as oysters create so-called pearl sacs around intrusive pieces of grit.

像牡蛎等椎动物在侵入体内的沙粒周围形成珍珠囊，继而产生珍珠。

Plastic has been found in turtles, seabirds, fish, plankton, shellfish, even bottom-feeding invertebrates.

我们可以在乌龟，海鸟，鱼类，浮游生物，贝类，甚至椎动物身体里发现塑料。

Invertebrates from mollusks to coral to starfish all use calcium to build their bodies' support structures.

从软体动物到珊瑚再到海星，椎动物都使用钙来构建身体的支撑结构。