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Re: BAAD BCF
>>Most gliders, of course, never evolve powered flight. They evolve other
>>specializations toward becoming better gliders, either because their
>>particular gliding adaptations prohibit (or at least render extremely
>>unlikely) the evolution of flight (e.g., flattened ribcages) or simply
>>because the requisite adaptations simply did not appear in their lineages.
>Precisely my point - the evolution of gliding is not simply a way-station o=
>the road to powered flight, and may in fact have nothing to do with it.
So here's the question:
There are only three terrestrial vertebrates that have ever evolved flight:=
Birds, Bats, and Pterosaurs. I know that both bird and bat evolution is=
shotty at best, but how much do we know about pterosaur evolution? Do we=
have good (or any) transitional fossils for this group? If we did, we=
might be able to pull an idea or two from them. Any thoughts from the=
Labrynthodonts: Amphibians that lived with the Minitaur!