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Re: Rapator,the giant alvarezsaur



From: Tim Williamson
But what was this "function"? If the forelimbs did regain function after a period of atrophication, >why did they remain so small?

Probably because claws are easier to adapt than bones. They don't have any surrounding musculature or circulatory system, you're really just tinkering with a cuticle. They're more cost effective too in terms of material (keratin vs. bone, blood, etc.). So if claws can be adapted to the given task more quickly, they ought to reach optimum function before selection really starts working on bone et, al.


If you need "sharp points two feet away from the body" does it really matter how they get there?

;-)

Sound plausible?

Eric
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