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Re: Campbell's even crazier than a MANIAC? (archeopteryx climbing)
No significant predators within their range? Probably a different reason or
reasons for every species that has lost the ability for flight.
----- Original Message -----
From: "Sim Koning" <email@example.com>
Sent: Friday, September 26, 2008 1:10 AM
Subject: RE: Campbell's even crazier than a MANIAC? (archeopteryx climbing)
I was just thinking, when I brought up ratites and why they lost their
wing/flight feathers, I forgot about Rheas for some reason. Rheas still
have large wings that I remember reading are used as sails. If this is the
case, it is evidence of the benefit wings may give a running animal. But
why did so many other cursorial flightless birds lose their flight
feathers and show reduced wings?