Last updated almost 4 years ago
Marsupials, unlike placentals, have a pouch for their young.
Although mammals are usually thought of as hairy and warm-blooded the naked mole rat is neither.
The platypus, unlike most other mammals, lays eggs.
Bats are among the most diverse kinds of mammals.
Rats have been commonly used in research.
Mammals have mammary glands and nurse their young.
Mammals have differentiated teeth.
An extinct species of giant sloth.
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