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

Re: Carnivore Energetics: Why Are Lions Not As Big As Elephants?



Maybe I?m asking a dumb question, but if that?s the case, couldn?t mammalian predators evolve slower metabolic rates and achieve the same mass as a T. rex?


From: dinoboygraphics@aol.com
Reply-To: dinoboygraphics@aol.com
To: xrciseguy@sbcglobal.net, dinosaur@usc.edu
Subject: Re: Carnivore Energetics: Why Are Lions Not As Big As Elephants?
Date: Tue, 16 Jan 2007 17:22:09 -0500

"This article argues, among other items, that predatory
dinosaurs were able to achieve much greater body sizes
than predatory mammals due to lower resting metabolic
rates:"

As opposed to having prey that also achieved far larger size than the average mammalian herbivore...


Scott Hartman Science Director Wyoming Dinosaur Center 110 Carter Ranch Rd. Thermopolis, WY 82443 (800) 455-3466 ext. 230 Cell: (307) 921-8333

www.skeletaldrawing.com

-----Original Message-----
From: xrciseguy@sbcglobal.net
To: dinosaur@usc.edu
Sent: Tue, 16 Jan 2007 1:43 PM
Subject: Carnivore Energetics: Why Are Lions Not As Big As Elephants?

This article argues, among other items, that predatory
dinosaurs were able to achieve much greater body sizes
than predatory mammals due to lower resting metabolic
rates:

http://www.sciencedaily.com/releases/2007/01/070115215640.htm

Guy Leahy

________________________________________________________________________
Check out the new AOL. Most comprehensive set of free safety and security tools, free access to millions of high-quality videos from across the web, free AOL Mail and more.



_________________________________________________________________
Your Hotmail address already works to sign into Windows Live Messenger! Get it now http://clk.atdmt.com/MSN/go/msnnkwme0020000001msn/direct/01/?href=http://get.live.com/messenger/overview