David Marjanovic wrote:
> I don't think this proves anything. The fact that modern gliding > birds have asymmetry within the range of modern flying birds is purely > circumstantial -- plus it's the sort of convergence you'd expect, > since an aerodynamically efficient feather is aerodynamically > efficient whether used for flapping or gliding.
So Archie didn't use its feathers for anything aerodynamic, no?
Tim
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