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Show Animal Oddities The capybara, largest of all living liv-ing rodents, has teeth powerful enough to cut corrugated iron, says Collier's. The Steganopodes, an order of birds including pelicans, peli-cans, cormorants and gannets, have no nostrils and breathe through their mouths. Chow dogs and polar bears are the only animals that have black tongues; frogs and toads are the only animals that cannot swallow without closing their eyes; and minks and weasels are the only animals, other than skunks, that eject a malodorous fluid when angered. |