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Re: Emu distribution

>>Secondly, extinctions at the K/T may have involved invading
predators.  There was a massive invasion of mammals apparently sweeping
from North to South Northern America just at this time.  So called
Condylarths are probably all herbivores.  However, they may have had some
as yet undiscovered predators among them.  It would be very unusual to
have an immigration which included only herbivores--as if an International
check-point existed: "Sorry, herbivores only may enter."<<

Valid point. I see how dingoes tie in now.