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

还有无脊可以变得更小！

Invertebrates are animals that do not have backbones.

无脊则没有。

So specifically, fish as well as aquatic invertebrates.

特别是鱼类和水生无脊。”

And I'm reviewing my knowledge of invertebrate zoology.

我还在回想有关无脊学的知识。

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

牡蛎是软体门下的软体无脊。

The two largest groups of animals are vertebrates and invertbrates.

最大的两个类别是脊和无脊。

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

以下哪种海洋生是地球上最大的无脊？

Most of the animals in the world are invertebrates.

绝大部分都是无脊。

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

我们会收集有关鱼类、无脊、珊瑚和珊瑚疾病的数据。

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

昆虫没有脊，是无脊。

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

多种珊瑚，多种鱼类，无脊，都快乐地生活在一起。

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

它是世界上最大的无脊，也就是没有脊的。

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

诸如虾之类的无脊、 鱼类，以及海洋哺乳都使用声音。

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，无脊真的有大脑吗？

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

哪些水生软体无脊的生长轮与树干相似，可以确定其龄？

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

各式各样的珊瑚，多种多样的鱼、无脊，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.

它们可以为无脊、甲壳类、鱼以及海蛇等海洋生提供栖息之地。

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

像牡蛎等无脊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，贝类，甚至无脊身体里发现塑料。

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

从软体到珊瑚再到海星，无脊都使用钙来构建身体的支撑结构。