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Re: A good day for tyrannosaurs

2009/10/6 Dann Pigdon <dannj@alphalink.com.au>:
> On Wed, Oct 7th, 2009 at 12:41 AM, B tH <soylentgreenistrex@yahoo.com> wrote:
>> With the maybe/maybe-not of Nanotyrannus, the announcement of the new 
>> shrimpy/mini-
> tryrannosaur
>> last week, and another more gracile tyrannosaurid now - it looks to me like 
>> these guys were very
>> prevalent at all levels (or stages) of the ecosystem - a hunter for every 
>> size prey?
>> As time goes on I'm sure you'll find more and more of these animals.
> It makes you wonder, though, how the smaller-bodied tyrannosaur species 
> managed to compete
> against the juveniles of the larger forms (where they were contemporaneous).

Same way cheetahs compare with juvenile lions: different niche.