Mammal

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Mammals
Fossil range: Late Triassic–Recent
Raccoon (Procyon lotor )
Raccoon (Procyon lotor )
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
(unranked) Amniota
Class: Mammalia
Linnaeus, 1758
Subclasses & Infraclasses

Mammals are a group of vertebrate animals. They form the class Mammalia.

A mammal is any animal that produces and feeds its young with milk and is warm-blooded; the heat they need to live is made inside their body. The milk is made by glands in the skin.

There are very few mammals that lay eggs, called Monotremes (for example the platypus). Almost all mammals give birth to living young. Those mammals can be divided into the Marsupials and the Eutheria, the placental mammals.

Most mammals have four legs and a coat of hair or fur.

[change] Taxonomy

Mammals can be divided in a number of groups:

[change] Images

See also: Mammalia (taxonomy)
Look up Mammalia in Wikispecies, a directory of species
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