just saw too many animation channels got demo
scientists believe that other human-related species such as neanderthals and denisovans, disappeared because of a combination of factors these included climate change, competition for food and resources, diseases small population sizes, and interaction with modern humans. in some cases modern humans may have replaced them while in others they mixed genetically through interbreeding. over time for instance if you are European you share considerable amount of DNA with neanderthals other extinct human specie , only modern humans survived and spread across the world.
just wondering
