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Re: Miragaia's Fancy New Neck....
Quoting don ohmes <email@example.com>:
> Therefore, unless one postulates extreme variation in neck length in the
> population under selection, predation avoidance enhancement may serve to
> preserve 'long-nekked-ness' :D, but cannot act as a driver of incremental
> length increase.
You are of course assuming that the neck length evolved slowly. Evolution isn't
always about slow
incremental changes. A single mutation in the right gene can have drastic and
effects, altering the way genes around it are expressed, which in turn can have
Compare a 'normal' whippet and a 'bully' whippet for instance, resulting from a
relatively simple two-
base-pair deletion in the myostatin gene. You wouldn't think they were the same
breed of dog if you
didn't know better.
GIS / Archaeologist http://geo_cities.com/dannsdinosaurs
Melbourne, Australia http://heretichides.soffiles.com