Table of Contents (click to expand)Taxonomic Classification Of Reptiles And BirdsTracing The ‘Family’ TreeTake-off Birds are reptiles. Birds, lizards, crocodiles, and other reptiles have all evolved from a single common ancestor. In other words, all reptiles are more closely related to each other on the evolutionary tree than they are to any other animal. We have fossil evidence of birds having evolved from dinosaurs. When we think of ‘reptiles’, we often picture a scaly animal, most ...
