Have you ever wondered where our human propensity for violence and history of warfare comes from?  Why there is such an established history of violence among humans, and why are we so good at killing and conducting war?  In this episode, we look at the evolutionary psychology that drives our violent behaviors through the lens of Japanese history to answer these questions and more. Outtro Music: Sex audio & video by Asian Women on the Telephone Support the podcast on Patreon: https://www.patreon.com/samuraiarchives Shopping on Amazon.com?  Use our link: http://www.amazon.com/?_encoding=UTF8&tag=samurai-20 Support this podcast: Samurai Archives Shop (T-Shirts, etc) http://www.cafepress.com/samuraiarchives Contact Us: Twitter @SamuraiArchives https://twitter.com/#!/samuraiarchives Facebook: http://www.facebook.com/pages/Samurai-Archives/104533213984 Samurai Archives Podcast on Reddit: https://www.reddit.com/r/samuraipodcast/ Samurai Archives podcast blog: http://www.samuraipodcast.com Samurai Archives Forum: http://www.japanhistoryforum.com Patreon Special Thanks: Luis, Cody Makua Burks, Marty Brennan