What would be different If we walked on four these days?
In: Biology
There’s credible research that our bipedalism, and subsequent availability of our hands to do other stuff while walking or standing upright, is if not caused by at least heavily correlated with our growth in intelligence as a species. So, to put a minor twist on your last question; I think its reasonable to state that we wouldn’t be having this conversation if the genus homo never started walking upright, or many conversations at all.
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