Seemingly peaceful gorillas join 'mobs' and beat up rivals

From the BBC:

http://www.bbc.com/earth/story/20161128-groups-of-gorillas-have-turned-violent?ocid=global_earth_rss&ocid=global_bbccom_email_29112016_earth

Rico says (as did Vaughn Bode), after a million years, the replacement team...