Way back when...
Reptiles went a few differnt ways some stayed "reptiles" some evolved into the dinosaurs, some into the mammal like reptiles (forerunners of mammals). Not all dinosaurs are related to birds . There was a subset to them, however, that were (the bird like dinosaurs, I remember this including the tricerotops (sp?) and the bipedal carnivors (raptors actually had feathers) and the forerunners of birds.
The birds / dinosaurs diverged from reptiles a lot later than mammals so birds are still not too far from reptiles.
-Alice
I could go through my old textbooks and nail down the facts... but, that sounds like work
