The World of Mammals (A2 - B1)
Section outline
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A mammal is an animal that feeds its babies with milk when it is young.
There are over 4,500 types of mammals. Many of the most popular animals we know are mammals, for example, dogs, cats, horses, cows, but exotic animals like kangaroos, giraffes, elephants, and anteaters belong to this group, too.
Humans are also mammals.

African bush elephants
Image: Ikiwaner, GFDL 1.2,
via Wikimedia CommonsWords
- anteater = an animal that has a very long nose and eats insects
- exotic = unusual, different
- feed = to give food to ...
- humans = people
- most popular = best known
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