Are Birds And Mammals Endothermic?

Are Birds And Mammals Endothermic? Are birds and mammals endothermic? endotherm, so-called warm-blooded animals; that is, those that maintain a constant body temperature independent of the environment. The endotherms primarily include the birds and mammals; however, some fish are also endothermic. Are birds and mammals exothermic? Mammals and birds have a body temperature that stays