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OK, now that I've got your
attention...
Sorry if this has already been discussed, but it
seems to me that the determining factor as to why all non-avian dinosaurs died
while avian dinosaurs survived is the degree to which they cared for their
eggs. I believe that species that protected their eggs from the elements
by either burying them or constantly sitting on the nest are the ones that
survived the extreme climatic changes at the K-T boundary. Simple
explanation to explain why we have no non-avian dinos today. Maybe only a
few (or one) species of avian dinosaur sat on its nest 24/7 and gave rise to all
the varieties we see today.
Thought?
Scott
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