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Re: How did dromaeosaurs use their arms?

In a message dated 5/15/00 8:17:32 PM EST, bettyc@flyinggoat.com writes:

<< Are you suggesting dinosaurs were unable to turn until the development
 of feathers? 
 Are you suggesting that there were few successful dinosaur predators
 until they developed feathers?
 Dinosaurs use their tail at every stride.  They can't do anything else
 BUT waggle their tail when they walk.  The tail would HAVE to be
 involved in turning simply because the tail POWERS the turn. >>

These are but >some< of the objections to the idea that feathered forelimbs 
evolved >for< maneuvering on a ground-dwelling predator rather than for 
aerial control.