Mammals

There are about 5,000 species of living mammals. They are divided into three subclasses and about 26 orders (there is no consensus among biologists). Unlike other animals, mammals have body hair, have 3 middle ear bones (the malleus, incus, and stapes), and nourish their young with milk that females produce in modified sweat glands that are called mammary glands.

For more information on mammals, click on the links below:

MONOTREMES Monotremes are primitive, egg-laying mammals. Spiny anteaters and the duck-billed platypus are monotremes.

MARSUPIALS Marsupials are mammals whose young are born very immature. Most female marsupials have pouches.

PLACENTAL MAMMALS Placental mammals are advanced mammals whose unborn young are nourished through a placenta.

Work Bank Printouts:

List of Mammal-Related Words This is a word bank of common words related to mammals.

Mammal-Related Anagrams This is a word bank of anagrams of words about mammals. An anagram is a word or phrase that is made by rearranging the letters of another word or phrase. For example, spot is an anagram of tops.

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