Synapsida, the group which contains mammals and their extinct relatives, originated during the Pennsylvanian subperiod, when they split from the lineage ...
But along with whales, their mammal cousins, dolphins may face more danger over the long term below the surface of the sea.
An introduction to the form and function of mammals, just what are mammals and how do we recognise mammals when we see them?
Define mammal: a type of animal that feeds milk to its young and that usually has hair or fur covering most of its skin—usage, synonyms, more. Follow: GAMES;
The highest type of man and one other animal, the only mammal existing on Mars, alone have well-formed nails, and there are absolutely no hoofed animals in existence ...
Learn all you wanted to know about mammals with pictures, videos, photos, facts, and news from National Geographic.
Mammal (class Mammalia), polar bear: polar bear nursing her cubs age fotostock/SuperStock any member of the group of vertebrate animals in which the young are ...
The blue whale is the largest mammal. The largest land mammal is the African bush elephant. The largest known species was for many decades considered to be ...
What Makes a Mammal A warm-blooded animal with a backbone that breathes air, and has at least some hair at some point during its life. The females have glands that ...
Mammals are the group of vertebrate animals which form the class Mammalia. They have fur and a very precise kind of temperature regulation. The females bear live ...