First guy gets a little tail, second guy wants in on the action, first guy loses a couple rounds, then mans up for a true street fight, barrel rolls and all, comes out victorious. Some humans could learn a thing or two.. http://newatlas.com/male-cuttlefish-fighting-in-wild/49322/?utm_source=Gizmag+Subscribers&utm_campaign=19179ac901-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-19179ac901-90206453 "This requires more smarts than making decisions based on one's strength alone, which is not surprising given that scientists consider cuttlefish to be one of the smartest invertebrates around."