but women's feet may lose their little toes in ten or more generations
Nails wrote:Evolution needs a pressure to drive a change into a population's genome (or to eradicate a trait)
In that sense, it is quite difficult to predict what will happen, or even what can happen with any certainty.
As we have quite literally taken control of our genetics to quite a significant extent with our medical knowledge and genetic screening, we have removed many aspects of selection pressure.
I can't see our thumb changing any time soon, not unless the best texters/gamers get the girls at the expensve of anyone else - but I would actually expect those who spend all day on their computers to be less likely to spend time with a girl.....
If animals can't talk then contact with humans isn't going to make them talk.
What is needed here is a genetic change and a pressure which makes this change advantageous and so it becomes more numerous in the gene pool.
We will lose our fertility as IVF etc will become the standard way to reproduce.
Watch "idiocracy" film.
Shadowwolf wrote:We will lose our fertility as IVF etc will become the standard way to reproduce.
This I think is doubtful, even if IVF became the widespread norm there does not appear to be any selective pressure that would make the plumbing go away or become non-.
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