Baldwins are born with a full coat of hair. After two to five days their hair begins to fall out, starting at the head and progressing to their hind ends. By the age of two months, they are completely bald.
As an adult, the Baldwin guinea pig is completely hairless. As they developed from White Crested guinea pigs, they have wrinkles and folds on their shoulders and crowns in the areas where the crest would be. Their skin has a rubbery texture.
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