David Scheidt wrote:
On Jan 26, 2008 7:10 PM, Susan Koziel
<[EMAIL PROTECTED]> wrote:
---
Does that number even
come close to modeling a similar circumstances in
humans? How quickly would I have almost all 7-foot
humans if we only allowed seven-footers to reproduce
with each other, and nobody else? Is it 1-2
generations, or 10, or more? I think probably only
1-2, to be honest.
Height is a multigene thing that is largely influenced
by environment. Breeding only 7ft isn't going to
Dutch men are the current favorite example of this. They're about 20
cm taller (average height is a bit more than 185cm) than they were
about 100 years ago. Given that it is
rather unlikely that they've been engaging in selective breeding,
that's down entirely to factors like diet.
It all depends on how you define selectice breeding. If the women of the
country on average prefer taller men, then for the most part the taller men
will breed...
I'm not saying it definitely is a factor, but that it can't be completely
ruled out.
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