外温动物的内温性

Endothermy of Ectotherms

一些外温动物具有内温性 ,通过行为或生理上的调节 ,使机体的温度高于环境温度 ,提高肌肉和内脏的工作效率 ,有利于捕食和促进消化 ,以更好的适应外界环境.

Birds and mammals are traditionally known as warm-blooded, the term cold-blooded being used for all other animals. Most cold-blooded animals are or less at the mercy of their environment in regard to the body temperature they attain. However, some so-called“cold-blooded' animals can and indeed do stay warmer than the medium in which they live,whether it be air or water.