Overlords!

Why would a larger brain more intelligent species not take over, probably the same reason you do not want to be a captain or leader of preschoolers as an army, it just would not make sense, but as far as exterminating a potentially dangerous species such as humans , then you might be a hero of the universe, fame and glory! As a preventative for non speculative violence prevention, there is a quote from a hip hop album of the early 2000's "I envision turbulence and murder since its an everyday occurence."-Deltron 3030 . Whereas i do jot see a 3030 coming for any human...