Goose bumps

Goose bumps, also called goose fleshgoose pimples, or the medical term cutis anserina, are the bumps on a person’s skin at the base of body hairs which may involuntarily develop when a person is cold or experiences strong emotions such as fear, nostalgia, pleasure, awe, admiration or sexual arousal.   The reflex of producing goose bumps is known as horripilationpiloerection, or the pilomotor reflex. It occurs in many mammals besides humans; a prominent example is porcupines, which raise their quills when threatened, or sea otters when they encounter sharks or other predators.  (Adapted from Wikipedia)

photo from roguedemonhunter flickr

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