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and as our ancient relatives came from similar environments i would expect those mutations that survive to be similar.
On the other hand though, I guess you could claim that humans are a part of nature and therefore whichever mutation makes them more likely to be kept alive by humans for breeding, instead of culled/cooked, has conferred an advantage.
I see, well that pretty much clears it up to me! Is it right to say then, that the increase in our brain size and intelligence is largely due to us begining to walk upright, blood flow to the brain etc? If this is true I wonder whether we can make monkeys slowly more intelligent by forcing them to walk upright, maybe using some kind of monkey zimmer frame??!
So when you compare us to apes it's like comparing an old apple computer with the latest microsoft computer.