What core characteristics define the Class designation of the Welsh Black as *Mammalia*?

Answer

They are warm-blooded vertebrates that nurse their young with milk and possess hair or fur

The classification of Welsh Black cattle into the Class Mammalia is determined by several key biological attributes characteristic of this class. Specifically, they are defined as warm-blooded vertebrates, meaning they maintain a constant internal body temperature. Essential mammalian traits further include possessing hair or fur, breathing air using lungs, and, perhaps most significantly for this classification, the unique biological function of nursing their young with milk produced by mammary glands. These traits distinguish them from other vertebrate classes.

What core characteristics define the Class designation of the Welsh Black as *Mammalia*?
classificationcattlebreedbovine