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Re: T. rex vs Edmontosaurus speed



Does anyone know of exceptions to the apparent rule-of-thumb as it applies to 
tetrapods? Specifically, that within taxa, the fastest is neither the largest 
or smallest? Perhaps within bounders like 'roos?

Don

----- Original Message ----
From: jrc <jrccea@bellsouth.net>
To: david.marjanovic@gmx.at
Cc: dinosaur@usc.edu
Sent: Thursday, December 13, 2007 10:18:15 AM
Subject: Re: T. rex vs Edmontosaurus speed

True.  And for distances over a hundred miles, most horses can't outrun
 a 
human (with the provision that the human isn't a couch potatio).
JimC
----- Original Message ----- 
From: "David Marjanovic" <david.marjanovic@gmx.at>
To: "DML" <dinosaur@usc.edu>
Sent: Thursday, December 13, 2007 8:22 AM
Subject: Re: T. rex vs Edmontosaurus speed


> Bears can indeed run as fast as horses; they just, AFAIK, can't keep
 it up 
> for comparable distances.