"TomHendricks474"  wrote in message
news:brkrjm$2nk1$1{at}darwin.ediacara.org...
> << For a while I've been wondering if we've given up
Lamarckism
> too quickly--in this sense:
>
> We know that brain development of infants (as well as the
> whole body in fact) depends on the release of certain
> biochemicals at specific times in life dictated by our
> evolved genetic programs... what if evolution works on
> selecting for those genes associated with the release of
> greater quantities of biochemicals which are responsible
for
> a beneficial physical result, e.g., neck lengthening
(would
> growth hormone of something related work here?) Maybe
> stretching giraffe necks actually _can_ affect the genes
in
> this way--Is it possible for hormone releases to be
mediated
> in this way, and provide some linkage to genotype? Anyone
up
> for a neo-Lamarckian movement?  :-))        ...tonyC
>
> >
> > Yours,
> >
> > Bill Morse
> >
>  >>
>
>
> Well how about this. Humans have a specific window of
opportunity to learn
> language - specifically to speak it like a native. After a
certain age, though
> we can learn a foreign language - that specific post birth
period is gone for
> ever. Would that fit your Landmarkian idea.
> TH

Close, but the general case would have to involve direct
feedback into the genome somehow--geez, right now I can't
even come up with a wild thought experiment on what I
meant--my giraffe example seems to fall short... :) maybe my
thought is so wrong that it's "not even wrong." (was it Bohr
who said that about a theory once?) Will think on this a
little more...must be some decent general way to link
physical changes to the genome itself.       ...tonyC
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