A species of mammal is one that has warm blood and gives birth to live young
编辑以下语句以使其更加清晰：

"A species of mammal is one that has warm blood and gives birth to live young"
哺乳动物的一个物种是指其具有温暖的血液并能为幼仔提供养料，令其在出生时仍处于活着的状态。