Check out your ear. Do you see this little bump? That’s called Darwin’s tubercle. It used to help you move your ears around. Now that we have super-flexible necks, we don’t need these anymore. (3/8) pic.twitter.com/2OlVWEu6gT
— Dorsa Amir (@DorsaAmir) January 15, 2019
Evolutionary anthropologist Dorsa Amir shares some parts of the human body and some human reflexes that serve no purpose for us now. However, these vestigial body parts were once important for things like moving our ears and climbing trees. See, the process of natural selection doesn’t make us shed organs just because we don’t use them, unless getting rid of them actually helps us survive. But if the body part is no longer important, it doesn’t need to be maintained at full strength over generations. Amir also mentions some body parts we once thought were vestigial, but turn out to be possibly useful to us even now. Read Amir’s Twitter thread here. -via Boing Boing
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