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What are the most important differences between the hippo and the crocodile?
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The hippopotamus is a large, semi-aquatic mammal that lives in rivers, lakes and swamps. It has a distinctive hump on its back and a long, flexible snout. Its closest living relative is the elephant. The crocodile is an aquatic reptile with a broad, rounded head and a long, slender body. It has a narrow, pointed snout. The two animals have very different diets and habitats, so they have evolved to be quite distinct from each other.