Editing Neanderthal extinction (section)

===Violence===
Kwang Hyun Ko discusses the possibility that Neanderthal extinction was either precipitated or hastened by violent conflict with ''Homo sapiens''. Violence in early hunter-gatherer societies usually occurred as a result of resource competition following natural disasters. It is therefore plausible to suggest that violence, including primitive warfare, would have transpired between the two human species.<ref>{{cite journal|last1=Ko|first1=Kwang Hyun|title=Hominin interbreeding and the evolution of human variation|journal=Journal of Biological Research-Thessaloniki|date=2016|volume=23|pages=17|doi=10.1186/s40709-016-0054-7|pmid=27429943|pmc=4947341 |doi-access=free }}</ref> The hypothesis that early humans violently replaced Neanderthals was first proposed by French paleontologist [[Marcellin Boule]] (the first person to publish an analysis of a Neanderthal) in 1912.<ref>Boule, M 1920, Les hommes fossiles, Masson, Paris.</ref>