Why does the fine hair we have all over our body stand on end when we're feeling cold?
by 
Daydreamer
ANSWERS: 2
-
Way back when our ancestors had fur, this used to help improve the insulation.
-
Air is a particularly good insulator - it helps to kep you warm. When you get goosebumps, the hairs of your body stand on end, in an effort to trap air between hairs. In essence, it works to try and keep you warm.
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC