哺乳动物

Now is the world's most primitive mammals.

是现在世界上最原始的哺乳动物。

Yeah, yeah, it's the second biggest out of all the mammals.

嗯，是哺乳动物中第二大的。

Therefore, all mammals live in the sea.

因此，所有的哺乳动物都生活在海中。

Some of the largest brains in the world of mammals are found in the oceans.

一些最大的脑袋，在世界上的哺乳动物被发现在海洋中。

They are, in fact, the world's largest burrowing mammals.

实际上，他们是世界上最大的挖洞哺乳动物。

Smith:I realized that you're not actually mammals.

我意识到你们人类并不是真正的哺乳动物。

Below is a listing of some of the world's more familiar marine mammals.

下面是一个上市的世界上一些较熟悉的海洋哺乳动物。

It is an essential nutrient in the diet of mammals.

它是哺乳动物重要的营养物质

There are two similar genes in the bodies of mammals.

所有的哺乳动物体内都有两种相似的基因。

And there are more than forty kinds of mammals.

并有较哺乳动物40种更多。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。