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Re: Tiktaalik
David Marjanovic wrote:
Well, _actually_, that _is_ a small (though of course rare) change that
just _looks_ like a big one morphologically.
Yes. It looks like a big morphological change, because it *is* a big
morphological change. Sure, it was caused by a small developmental change;
but it's the resulting phenotype that's acted upon by natural selection.
Here's the story. Jeff did a nice job of summarizing it, I think.
http://www.newscientist.com/article.ns?id=dn6647