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> Today, we live in a completely different world as our ancestors. Yet, our biology is still exactly the same. Is that really true? I've heard this kind of arg
by justzisguyuknow 9y ago
> Today, we live in a completely different world as our ancestors. Yet, our biology is still exactly the same.
Is that really true? I've heard this kind of argument so many times that it seems right, but I've rarely seen any scientific evidence to back it up. Surely our bodies have evolved in some subtle and diverse ways over many thousands of generations?
- logicchains 9y agoOur ancestors couldn't digest cow milk as adults. We've only had farming for around 10,000 years, but people in regions that practiced dairy farming have already developed lactose tolerance.
- lotsofpulp 9y agoWhile not conclusive, I think the easiest way to reason this is that evolution needs a much longer timespan than a few thousand years, assuming ancestors means sometime after "civilizations" started
- graphitezepp 9y ago'Exactly the same' is surely an exaggeration, but I see no way we could have changed significantly considering the timescale and nature of our evolutionary pressures.
- rb808 9y agoMaybe born the same, but looking at the people around me that sit down 14 hours a day and eat "modern food" our physique certainly is different to their great grandparents, it wouldn't surprise me that brains differ too.