This isn't to say that Endotherms don't also have some variability in their body temperature.

这并不是说恒温动物的体温也没有变化。

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

她补充说，长以来，这种生长一直被认为是哺乳动物和鸟类等恒温动物所特有的。

In the end the answer whether dinosaurs were ectotherms or endotherms is much more complicated than it seems.

最后，是变温动物还是恒温动物的答案比看起来要复杂得多。

Besides, the reading passage states that dinosaurs had legs that were underneath the body, which is the feature of endotherms.

此外，阅读文章指出的腿在身体下方，这是恒温动物的特征。