Mammals: Animals with Hair

A humpback whale.

User 272447 on Pixabay.

A whale is a mammal.

There are so many different types of mammals. Dogs, cats, elephants, and even whales are mammals. You're a mammal, too! That's right, humans are mammals.

How are mammals alike? Mammals are living creatures that have a backbone, also known as a spine. They grow...

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