Not sure as to why the Bonobos are vegetarians, but I saw a special on them once and they are some of the most intelligent, as well as... how shall I put this... the most liberal with their affections of the primates. Training of a specific Bonobo resulted in him understanding human language and being able to communicate by special boards with thousands of icons (representing feelings and desires as well as physical objects) that he's been taught to recognize.
I am a vegetarian of 9 years and do so because I just don't really like meat. I have no problems with meat eaters or people eating meat around me, though once I was verbally accosted by a girl who just assumed I would judge her.
