Have you ever wondered where goose bumps come from?

Goose bumps are caused by the contractions of small muscles at the base of hair follicles - often caused in response to cold, or fear.

Back when humans were a little more furry than we are now, goose bumps caused hair to stand on end. This was advantageous in the cold because extending one's fur helps maintain warmth.

Goose bumps also were good to have when times are scary, because extending one's fur makes you seem bigger...and perhaps a more imposing figure to anybody that is trying to eat you!

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