u/DynaMyte57

These reptilians PREYED on and HARRASED our mammalian ancestors for over 100 million years! They prevented us from restoring Synapsid dominance over Earth, and it took an asteroid and multiple volcanic events to finally get rid of the non-avian ones. They forced our ancestors to go from top predators and herbivores to little more than rat-like scavenging insectivores. They also forced us to hide in burrows all day and only come out at night.

Synapsids were the first dominant land vertebrates of Earth, and we will be the ONLY dominant land vertebrates on Earth for eons to come. Reptiles will NEVER become dominant again, and the Dinosaurs are a reminder of the dominance we were denied for millions of years.