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Re: origin of bats/reply 2 to TMK



Well, no -- entirely aside from the tree issue, the digit even without a feather, can operate as a 'snag' (a vortex generator), thereby serving much the same purpose as an alula.
JimC


----- Original Message ----- From: <dinoboygraphics@aol.com>
To: <ptnorton@suscom-maine.net>; <david.marjanovic@gmx.at>; <dinosaur@usc.edu>
Sent: Monday, June 23, 2008 11:57 AM
Subject: Re: origin of bats/reply 2 to TMK



If you assume that archie landed in trees, then it sure seems like it had _better_ have an alula,