linkedin post 2017-02-15 05:42:03

GOOSE BUMPS. “Piloerection, leading to ‘goose bumps’ or ‘goose pimples,’ can be considered a vestigial phenomenon in mostly hairless humans, and the arrector pili smooth muscles that pull on hair follicles and cause this autonomic reflex can be viewed as vestigial structures.”

https://evolution-outreach.springeropen.com/articles/10.1186/s12052-014-0012-5

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