Re: New Article in Experimental Zoology

[John Bois <jbois@umd5.umd.edu>]

On Sat, 24 Aug 2002 Dinogeorge@aol.com wrote:

> My guess is that mammal competition during the later Cretaceous made strong 
> inroads into terrestrial/arboreal dino-bird diversity,

Arboreal mammals?  What was so wonderful about these creatures that led
them to crush arbodinos after so many millions of years of
dominance?  After all, mammals and dinos had coexisted, right?

 so that when the 
> asteroid impact destroyed the big dinosaurs, mammals beat them to the 
> comeback in the aftermath.
> You still got occasional groups of giant, 
> flightless birds (= theropods) that evolved in isolation during the Cenozoic, 
> but there was nothing like theropod dominance during the Mesozoic.

Why not invade and take over for good?