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Fwd: Flight SPECULATION
Works the same way if the protobird is being chased.
>From: Robert.J.Meyerson@uwrf.edu (Rob Meyerson)
To: email@example.com (Multiple recipients of list)
Date: 95-12-03 13:24:52 EST
>>G.O.s arboreal origins idea has a degree of=20
>>plausibility, but I'll bet you could construct an argument, or a=20
>>thousands arguments of equal plausibility for a cursorial origin of=20
>I have yet to see even one.
How about this: The theropod that evolved flight did so along a highly=
irregular land surface (like a rocky shoreline). Flight is used in pursuit=
of prey, where the theropod can simply glide over gullies, while it's prey=
has to take the long way across (down and up). Similar evolutionary=
pressures as with the aboreal hypothesis, but with a cursorial origin.