Now Im sure most of us have heard of the catastrophic Permian Extiction...It killed I think 50% or more of Life's Organisms. What If the Permian Extinction was less drastic, and the Mammal-Like Reptiles that dominated that Era lived, while the Proto-Dinosaurs died off. Would there be no Birds? Would We elvolve from the Mammal Like Reptiles and still slightly resemble ourselves? Was there an Mammal-Like Reptile that had the capacity of Devolping Sentience? What would be the consequences of an Species similar to us appearing around the time of OTL Cretacous Extinction