What I can say with total confidence is Elliot here has hit a horse-like mammalia.

我可以百分之百确定的是，Elliot这里打中了马一样的哺乳动物。

That's because they share the defining characteristics of mammalia, and are evolutionarily linked to the rest of the class.

这是因为它们共享哺乳动物的定义性特征，并在进化上与该纲的其他成员紧密相连。

And that is, I worry that these synthetic relationships are making us less mammalia, that they are sequestering us from each other.

而且我担心，这些人为制造的关系正在让我们失去作为哺乳动物的本性，使我们彼此疏远。

I worry that synthetic relationships are attacking what's mammalia about us, especially among young men.

我担心人造关系正在侵蚀我们作为哺乳动物的本质，尤其是在年轻男性中。

They may be lizards or small birds, or very young mammalia, so complete is the similarity in the mode of formation of the head and trunk in these animals.

它们可能是蜥蜴或小鸟， 或非常年轻的哺乳动物， 这些动物的头部和躯干的形成方式非常相似。

The word mammalia means of the breast, which is a bit of a misnomer because while kangaroos do produce milk from nipples in their pouches, they don't actually have breasts.

“哺乳纲” 这一名称意味着“与乳房相关”，这其实有点用词不当， 因为尽管袋鼠确实能从其育儿袋中的乳头分泌乳汁，但它们实际上并没有乳房。