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>  And as for those Tyrannosaur forelimbs- those things could pull
> hundreds of pounds per arm, they seem to have been used as grappling 
> hooks to secure the prey while the tyrannosaur takes a bite out. So they 
> certainly weren't vestigial. They do display surprisingly little 
> curvature, or at least, I thought so after looking at eagle claws, which 
> curve through over ninety degrees.

      I don'r remeber if anyone answered my question the last time this 
came up regarding how strong other tyrannosaurid arms were.  Tyrannosaur 
arms might indeed have been becoming vestigial, and T.rex found a new use 
for them that caused them to get beefed up.

LN Jeff