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Re: Fw: Dinosaurs and birds

A cursorial approach to flight could be expected to work well on any planet that has gusting winds rather than uniform or no winds. I can't imagine any planet with an atmosphere that wouldn't have gusts. That doesn't imply that I think that the approach to flight was entirely cursorial, as the evolution of the 'flight' apparatus seems to me to be more related to increases in general mobility.

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I don't know if a cursorial flight origin would work on a "smooth" planet or not. There isn't really any way to tell. We could certainly imagine scenarios that would work; that does not indicate whether those scenarios would be likely.