This graph, created by study author Dr Longrich, shows the global battles which waged for millennia between Neanderthals and humans, both archaic (blue) and modern (red)
* Neanderthals and Homo sapiens evolved from one ancestor 600,000 years ago
* Two species co-existed together until Neanderthal extinction 40,000 years ago
* Experts believe the two species were engaged in a long-running guerrilla war
* Dr Nicholas R. Longrich of the University of Bath explains it for The Conversation
Neanderthals and Homo sapiens were closely related, sister species who evolved from the same ancestor and co-existed for millennia.
But scientists have tussled with trying to explain why Neanderthals went extinct around 40,000 years and humans lived on.
Several theories have been put forward to explain how this happened, including competition for the same resources, such as food and shelter; Neanderthals being unable to adjust to rapid climate change; and direct confrontation.
Read more ....
Update #1: Did Neanderthals go to war with our ancestors? (BBC)
Update #2: Neanderthals And Humans Were at War For Over 100,000 Years, Evidence Shows (Science Alert)
WNU Editor: War and violence is our nature.