Mammals, on the other hand, are warm-blooded -- well, for the most part.

另一方面，哺乳（mammals）则是恒温（warm-blooded），好吧，绝大部分哺乳是这样。

Like birds, mammals are warm-blooded and breathe air.

和鸟一样，哺乳是恒温，呼吸空气。

They are vertebrates, which means they have backbones, and, like mammals, they are warm-blooded.

它们是脊椎，也就是说它们有脊柱，和哺乳一样，它们是恒温。

These guys are warm-blood. They need to eat frequently.

它们是恒温。需要经常吃西。

For this reason the frog's blood is cold, while our blood is warm.

因此, 青蛙属于冷血, 则是恒温。

So with our relatively high unchanging body temperatures you and I are considered warm-blooded, most of us anyway.

我们的体温相对稳定，被认为是恒温，至少我们大多数如此。

This is because we're mammals-we're warm-blooded. We've evolved to be good at maintaining a warm body temperature.

这是因为我们是哺乳——我们是温血(恒温)。我们经过进化，变得很擅长维持温暖的体温。

She added that this kind of growth has long been considered special to warm-blooded animals like mammals and birds.

她补充说，长期以来，这种生长一直被认为是哺乳和鸟等恒温所特有的。

Mammals are warm-blooded, which means that they maintain a constant internal body temperature.

哺乳和恒温，意味着它们能持续保持身体的温度。

Zebras are mammals, which means they are warm blooded, are covered in fur, and feed their babies milk.

斑马是哺乳，这意味着它们是恒温，覆盖着皮毛，且用奶喂孩子。

They don't think those arguments prove that dinosaurs were endotherms. Take the polar dinosaur argument.

他们认为这些论点并不能证明恐龙是恒温。以极地恐龙论为例。

So the presence of dinosaur fossils in polar regions doesn't prove the dinosaurs were endotherms.

因此，极地地区存在恐龙化石并不能证明恐龙是恒温。

It's not clear whether these warm-blooded animals outcompeted the running crocodilians, but it's possible.

还不清楚这些恒温是否在竞争中击败了奔跑的鳄鱼，但这是有可能的。

But the mouse is going to be an endotherm.

但是，这只老鼠将成为恒温。

Is this turtle an ectotherm, or an endotherm?

这只乌龟是变温还是恒温？

That doesn't necessarily mean dinosaurs were high-energy endotherms built for running.

这并不一定意味着恐龙是为奔跑生的高能恒温。

Deinonychus, for example, has no bone rings, and was probably more like an endotherm.

例如，恐爪龙没有骨环，可能更像是恒温。

They can also be called endotherms.

它们也可以被称为恒温。

Somewhere along the way, it seems that dinosaurs became full endotherms, like modern birds.

在此过程中的某个地方，恐龙似乎变成了完全恒温，就像现代鸟一样。

Remember that endotherms are warm-blooded animals.

记住，恒温是温血。