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Re: Burrowing/hibernating mammals have lower extinction risk



On Tue, Feb 3, 2009 at 2:19 PM, Dann Pigdon <dannj@alphalink.com.au> wrote:
> Quoting Dino Guy Ralph <dinoguy@sbcglobal.net>:
>
> Birds the size of emus or ostriches might have had a hard time finding 
> suitable burrows. Unless of
> course all modern ratites are descended from a smaller burrowing form?

Isn't the ancestral ratite (or, possibly, the ancestral palaeognathe,
if ratites are paraphyletic) supposed to have looked something like a
tinamou? Do any of them ever occupy burrows?

-- 
T. Michael Keesey
Technical Consultant and Developer, Internet Technologies
Glendale, California