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Re: flapping from gliding

Stan Friesen wrote:

>However, is it no possible that the "difficult" step is the transition
>from gliding to powered flight?
>This certainly goes with your point that the two require different
>types of arm motion.
>swf@elsegundoca.ncr.com                sarima@ix.netcom.com

Perhaps a better way to put what I am trying to say is that I don't see
gliding as a necessary precursor to powered flight, nor do I see gliding as
an "intermediate" stage in te evolution of powered flight.  That does not
mean that a glider could not evolve into a flyer - only that finding a late
Permian or Triassic glider does NOT a priori mean finding a protobird!
Ronald I. Orenstein                           Phone: (905) 820-7886 (home)
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