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Human shoulders and elbows first evolved as brakes for climbing apes
(www.sciencedaily.com)
just science related topics. please contribute
note: clickbait sources/headlines aren't liked generally. I've posted crap sources and later deleted or edit to improve after complaints. whoops, sry
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Throwing (and hitting what we're throwing at) is a human superpower. We laypersons may take arms and throwing for granted but to anthropologists and biologists it's a pretty big deal.
The thing is, a significant part of our brain is tasked with throwing. It's not just superior eye-hand coordination but our brain knows how to arc the rock / javelin / ball. We also have a mean fastball.