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Re: flying Archie
"...some _fundamental_ change in the (physical properties of the) _global_
Not local eco-stuff... also, implied in your post is the idea that A. may have
been more optimal for tree to tree flight than modern birds, and birds
sacrificed that to obtain long-distance flight. Highly doubtful, right?
----- Original Message ----
From: Ronald Orenstein <email@example.com>
To: firstname.lastname@example.org; email@example.com
Sent: Sunday, September 24, 2006 10:58:28 AM
Subject: Re: flying Archie
At 08:05 PM 23/09/2006, don ohmes wrote:
>If evolution is the null hypothesis, Achie-style flight (whatever
>that was) was inferior to the modern style. Unless, of course, there
>has been some fundamental change in the global flight environment...
Which there might have been. There is a considerable difference
between the flight requirements for short-distance tree-to-tree
flight and, say, long-distance migration which might not have arisen
until climate changes favoured it.
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