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Re: How did dromaeosaurs use their arms?

In a message dated 5/13/2000 6:35:16 PM Pacific Daylight Time, 
psparks@crosslink.net writes:

> On land it is the distribution of mass that can effect mobility and
>  feathers don't weight anything.

But feathers produce a huge amount of air resistance, and that can affect 
mobility as well, especially if the animal is light and has a high center of 

Nick Pharris