[["The body hair of all mammals automatically stands up when cold, creating a fluffy layer of warmth.  This is a reflex left over from when our ancestors had long body hair, but since we don\u2019t have much body hair anymore, all we see are the goose bumps on our skin.", 92.0], ["The body hair of all mammals automatically stands up when cold, creating a fluffy layer of warmth. This is a reflex left over from when our ancestors had long body hair, but since we don\u2019t have much body hair anymore, all we see are the goose bumps on our skin.", 89.0], ["Goosebumps occur when the hair follicles force our hair to stand straight up, closing pores so heat doesn't escape and creating a layer of insulation. They also appear when you suffer from a heightened sense of emotion, such as fear or awe.", 30.0]]
what's the purpose of goosebumps
literature