Ruminants are a group of mammals.

Source: Tatoeba

Cheese is a solid food made from the milk of cows, goats, sheep, and other mammals.

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Beavers may be considered as the busiest mammals on Earth.

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The whale is well known to be the largest mammal.

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The African ground squirrels collaborate and are not aggressive to other mammals.

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A whale is a mammal.

Source: Tatoeba