Mammalian Characteristics

The class Mammalia has several distinguishing traits, among them a well-developed brain and high degree of parental care. Its members, warm-blooded vertebrates, have successfully expanded into habitats all over the world.

Homologous Structure

Appears in these articles

Mammal

*	Exclusively for ninemsn Encarta Premium Subscribers. Join Now

Encarta Products

MSN Privacy
Terms of Use
Advertise
Worldwide

Help