>>593882>>593881>>593880>>593879>fitness level sufficient that drastic mutations wouldn't result in higher fitness to the environment, so didn't need to evolve>>593877>>593878>as mutations turned scales into feathers, dinosaurs able to glide exploit new niche and populations evolve to suit their environment>>593886>not enough large prey to sustain a population of macropredators of Megalodon's levelStop with these fucking garbage threads.