Amazing Facts about Mammals

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Amazing Facts about Mammals in English

Some other facts include:
Mammals are a class of animals that have fur or hair, produce milk for their young, and have a four-chambered heart. There are more than 5,000 species of mammals, making them the largest class of vertebrates. Some of the most amazing facts about mammals include:

-Mammals are the only animals with hair or fur.
-All mammals have a four-chambered heart.
-Mammals are the only animals that produce milk for their young.
-Mammals are the largest class of vertebrates, with more than 5,000 species.