The hippopotamus is the third largest land animal that lives in rivers and lakes in sub-Saharan Africa. It can weigh up to nearly 10,000 pounds, has sensitive skin that is blackish-gray in color, and feeds mainly on grass while living in groups and caring for its young. Though not endangered, the hippopotamus has a lifespan of 20-40 years in the wild and up to 50 years in captivity.
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