Maybe you need to be a carnivore in order to evolve theory of mind
(gorillas have theory of mind)[http://www.newscientist.com/article/dn18658-mindreading-gorillas-love-a-good-game.html#.VAm-UXVdX0o]
Although, maybe an ancestor of theirs was a omnivore?
(gorillas have theory of mind)[http://www.newscientist.com/article/dn18658-mindreading-gorillas-love-a-good-game.html#.VAm-UXVdX0o]
Although, maybe an ancestor of theirs was a omnivore?