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Re: Chickens are Myrmecophages

On Wed, May 23rd, 2012 at 1:17 PM, Augusto Haro <augustoharo@gmail.com> wrote:

> Dann's point makes one wonder that Tyrannosaurus-sized omnivorous
> birds would have likely feasted on most mammals, including almost all
> primates and terrestrial carnivores. Whatever impeded avialans
> reaching the maximal size of other coelurosaurs, it seems to have been
> good for mammals...

Dromornithids may have been been the bane of many a small- to medium-sized 
mammal - and at 
a fraction of the size of a tyrannosaur. 

Although I'd imagine there'd be a point where the meal was so small that a 
wouldn't bother wasting any energy trying to catch it. I recently saw some 
lions at an open-range 
zoo who happened to be on a starve day (so we missed seeing them get fed), and 
they payed no 
attention at all to the tiny fairy wrens foraging about them.


Dann Pigdon
Spatial Data Analyst               Australian Dinosaurs
Melbourne, Australia               http://home.alphalink.com.au/~dannj