why do we have goosebumps ? i know it’s because of cold/fear, but why does our body do that ?
In: Biology
Evolutionary byproduct of our furry ancestors. It’s straightens the furr more that causes better insulation and therefore less cold.
I think it’s one of those ancestral features we still have to these days. Think of those mammals who use fur to get bigger in order to scary predators or fluffier to get warmer in cold weather. That’s goosebumps basically!
It’s a reaction that puffs up our body hair to trap more air to keep us warm or make us look bigger. Humans lost our fur, but not the reaction. Hope this helps
To add onto the other answers, the body utilizes tiny muscles located along every hair follicle to stiffen them to get them to stand up. We still retain those muscles, therefore goosebumps.
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