[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
230 mya the Pterosaurs, Dinosaurs, Birds (if you believe that Protoavis may
the the precursor for aves) and mammals evolve . Some dynamic has to be at
work here, other than the Permain-Triassic extinction event.
Endothermy or at least experiments in warm blooded physiology would be
the logical trigger for such a remarkable radiation of fundamentally
different forms at this time.
Any thoughts on this out there?