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13 of the ugliest animals on the planet

By: Bryan Nelson on Feb. 16, 2016, 12:58 p.m.
elephant seal in Antarctica

Photo: Jared Cohn/Shutterstock

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Elephant seal

Baby elephant seals and female elephant seals are pleasant looking. But males begin developing a large nose when they reach sexual maturity, somewhere around three to five years, reports The Marine Mammal Center. The huge proboscis is fully developed by seven to nine, giving the seal the look of its namesake elephant with a massive, floppy trunk.