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danby t1_j9jy3dw wrote

Reply to comment by codyish in What are more accepted hypotheses that similarly explain the aspects of hominid evolution that the "pseudoscientific" aquatic ape theory does? by KEVLAR60442

A problem here is how we teach evolution; that traits (and by extension) genes are selected. But the reality is in any given environment only a subset of traits are under active selection pressure. Most genes are free to drift by chance and appear and disappear.

I have somewhere of the order of 20-24k genes. I live in an environment where we estimate that 2000-4000 humans gene show adaptations to settled agriculture and cities. Less than half of human genes are estimated to be house keeping (i.e. required by all cells)

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