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9 nearly hairless mammals

By: Bryan Nelson on Nov. 18, 2013, 9 a.m.
A skinny pig eats an apple

Photo: Julia Kaysa/Shutterstock

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Skinny pig

Skinny pigs are the name given to a breed of hairless guinea pigs. They were originally bred in a lab, primarily for use in dermatology studies, but have since become part of the pet population. Skinnies are distinctive for their human-like skin, which could be either comforting or creepy.