Chimps and bonobos are physiologically [i]very[/i] similar - main difference is that bonobos tend smaller. Everyone knows about their social differences. What you might not know is that chimps do a lot more tool use in the wild than bonobos do. (On the other hand, a lot of researchers think this is an artifact, for two reasons. First, researchers have spent a lot more time observing chimps than observing bonobos, because chimps are more common. Second, bonobos live in a much more resource-rich environment than chimps do; they have less need to use hammerstones to crack nuts, for example, because fruit is more plentiful). Orangutans are somewhat larger on average than chimps, a lot more arboreal, and a lot more herbivorous. I personally don't think the differences are big enough to be worth splitting Neo-Hominin into separate morphs. If you want to, I'd increase the Climb bonus for orangs to +15 or +20, and say that bonobos tend to put the flexible attribute bonus in SAV and chimps in COG.