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Letum · 03-13-09, 07:31 AM

You shouldn't think of flightlessness as a regression. It is an
improvement/adaptation to save energy and allow larger body
mass etc., not a regression from under use.

03-13-09, 07:31 AM	#8
Letum Navy Seal Join Date: Feb 2005 Location: York - UK Posts: 6,079 Downloads: 43 Uploads: 0	You shouldn't think of flightlessness as a regression. It is an improvement/adaptation to save energy and allow larger body mass etc., not a regression from under use. __________________