It lives in water but can't swim, makes its own sunscreen and sustains countless other species with its dung. The hippo is one of Africa's most extraordinary animals, says Mike Unwin.The hippopotamus," so the claim goes, "kills more people than any other animal in Africa." Safari guides never seem to tire of this provocative assertion, though clients who remember the tutu-clad ballerinas featured in Disney's 1940 film Fantasia may well wonder how such an endearingly rotund creature could ever be more lethal than a lion, for example.
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