>From: Robert.J.Meyerson@uwrf.edu (Rob Meyerson) > > There are only three terrestrial vertebrates that have ever evolved flight:= > Birds, Bats, and Pterosaurs. I know that both bird and bat evolution is= > shotty at best, but how much do we know about pterosaur evolution? Even less. swf@elsegundoca.attgis.com sarima@netcom.com The peace of God be with you.