Outgroup threat has been identified as an important driver of ingroup cohesion in humans. but the evolutionary origin of such a relationship is unclear. Chimpanzees (Pan troglodytes) in the wild are notably aggressive towards outgroup members but coordinate complex behaviors with many individuals in group hunting and border patrols. One hypothesis claims that these behaviors evolve al... https://parisnaturalfoodes.shop/product-category/camomile/