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Re: Origin of flight in birds and bats

To: Dinosaur Mailing List <dinosaur@usc.edu>
Subject: Re: Origin of flight in birds and bats
From: Mike Keesey <keesey@gmail.com>
Date: Sun, 13 Nov 2011 19:03:13 -0800
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On Sun, Nov 13, 2011 at 5:48 PM, Dann Pigdon <dannj@alphalink.com.au> wrote:
>
> Wouldn't that suggest that frugivorous megabats, with good eyesight and no 
> echolocation, evolved
> from insectivorous cave-dwelling microbats with (presumably) small eyes and 
> echolocatory
> abilities? Surely that would require a lot of reversals in the megabats - 
> unless flapping flight
> evolved twice in bats.

Why couldn't the flightless stem-bats have been arboreal rather than
cave-dwelling? Dropping is presumably similar in both cases.
-- 
T. Michael Keesey
http://tmkeesey.net/

Follow-Ups:
- Re: Origin of flight in birds and bats
  - From: David Marjanovic <david.marjanovic@gmx.at>

References:
- Origin of flight in birds and bats
  - From: "bh480@scn.org" <bh480@scn.org>
- RE: Origin of flight in birds and bats
  - From: Jaime Headden <qi_leong@hotmail.com>
- Re: Origin of flight in birds and bats
  - From: Tim Williams <tijawi@gmail.com>
- Re: Origin of flight in birds and bats
  - From: Dann Pigdon <dannj@alphalink.com.au>

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