If you are really interested, I can ask my friends to find that book. It's in another State..., but accessible.
Monkeys are just an example, tha point is, that as soon as there are THINGS to fight over, there WILL be argument. This is a different issue, not really related to the original subject of the post, so I don't think it really should be discussed in this thread. However, I am confident in the conclusion I made regarding this example and there is another one, with a similar theam. Men and Women. The relationships between them is entirely different untill they are aware of their sixual differences.
This is a claim from Indian Buddhist studies...