恒温动物和骨结构之间也有相应的关联。

There is also a connection between endothermy and bone structure.

因为恐龙属于爬行动物，而现代的爬行动物都不属于恒温动物，所以长期以来恐龙都被当做是变温动物。

Because dinosaurs were reptiles, and modern reptiles are not endotherms, it was long assumed that dinosaurs were not endotherms.

“冷血”是外行的人对变温动物的叫法，它们的体温是随着周围的环境而变化，而不是像恒温动物那样内部自行调节体温的稳定。

"Cold-blooded" is the layman's term for ectotherms—animals whose body temperature is contingent on the surrounding environment, rather than internally regulated like that of warm-blooded creatures.