[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

RE: Origin of flight

Well there you go Tim.
It just goes to show that great minds think alike.
I haven't seen this insect catching behaviour by birds since then but I will watch out for it and try and video it.


From: Tim Williams <twilliams_alpha@hotmail.com>
Reply-To: twilliams_alpha@hotmail.com
To: dinosaur@usc.edu
Subject: RE: Origin of flight
Date: Tue, 11 Sep 2007 19:51:51 -0500
MIME-Version: 1.0
X-Originating-IP: []
X-Originating-Email: [twilliams_alpha@hotmail.com]
X-Sender: twilliams_alpha@hotmail.com
Received: from msg-mx0.usc.edu ([]) by bay0-mc3-f15.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Tue, 11 Sep 2007 17:52:30 -0700
Received: from listproc.usc.edu ([]) by msg-mx0.usc.edu (Sun Java System Messaging Server 6.2-7.05 (built Sep 5 2006)) with ESMTP id <0JO800851D3BCP80@msg-mx0.usc.edu>; Tue, 11 Sep 2007 17:52:25 -0700 (PDT)
Received: from listproc.usc.edu (listproc@localhost [])by listproc.usc.edu (8.10.1/8.10.1/usc) with SMTP id l8C0qNm20417; Tue, 11 Sep 2007 17:52:23 -0700 (PDT)
Received: from usc.edu (usc.edu [])by listproc.usc.edu (8.10.1/8.10.1/usc) with ESMTP id l8C0qGm20377 for <DINOSAUR@listproc.usc.edu>; Tue, 11 Sep 2007 17:52:16 -0700 (PDT)
Received: from msg-scanner1.usc.edu (msg-scanner1.usc.edu [])by usc.edu (8.10.1/8.10.1/usc) with ESMTP id l8C0qGL05332 for <dinosaur@usc.edu>; Tue, 11 Sep 2007 17:52:16 -0700 (PDT)
Received: from bay0-omc3-s21.bay0.hotmail.com ([]) by msg-scanner1.usc.edu (Sun Java System Messaging Server 6.2-7.05 (built Sep 5 2006)) with ESMTP id <0JO800J89D34MC30@msg-scanner1.usc.edu> for dinosaur@usc.edu (ORCPT dinosaur@usc.edu); Tue, 11 Sep 2007 17:52:16 -0700 (PDT)
Received: from hotmail.com ([]) by bay0-omc3-s21.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Tue, 11 Sep 2007 17:51:54 -0700
Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 11 Sep 2007 17:51:54 -0700
Received: from by by115fd.bay115.hotmail.msn.com with HTTP; Wed, 12 Sep 2007 00:51:51 +0000 (GMT)
X-Message-Delivery: Vj0zLjQuMDt1cz0wO2k9MDtsPTA7YT0w
X-Message-Info: k4vTkQF4eG3drRNek8PxLwsRgWhlSsOm+ucx/swteEevlVx1WQwitVdc6WvKcpnTON/j601k1i8HHeQ5q5nKX741vSRongbU
Precedence: bulk
X-Listprocessor-Version: 8.1 -- ListProcessor(tm) by CREN
X-OriginalArrivalTime: 12 Sep 2007 00:51:54.0267 (UTC) FILETIME=[1CDBEEB0:01C7F4D7]
Return-Path: owner-DINOSAUR@usc.edu

Nick Page wrote:

A few months ago I was sitting in my garden when I noticed what I took to be a rather dimwitted bird catching insects off the lower leaves of a shrub.
I then thought that a reptile with proto winglike forelimbs could do the same job.

The more efficient jumpers and flappers would be at an evolutionary advantage and get the most insects.

I wondered about this some time ago...


The idea is basically a spin-off of John Ostrom's 1970's hypothesis of pro-avians using their proto-wings and jaws to catch flying insects. The big difference is that the insect-catching proto-bird presumably doesn't have to work as hard, because the intended prey is sitting on a leaf, not flying in the air. So it's essentially a difference between aerial hawking and foliage-gleaning as the incipient flight behavior.



Can you find the hidden words?  Take a break and play Seekadoo! http://club.live.com/seekadoo.aspx?icid=seek_hotmailtextlink1

Advertisement: Search for local singles online at Lavalife http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Flavalife9%2Eninemsn%2Ecom%2Eau%2Fclickthru%2Fclickthru%2Eact%3Fid%3Dninemsn%26context%3Dan99%26locale%3Den%5FAU%26a%3D30290&_t=764581033&_r=email_taglines_Search&_m=EXT