[SauronOfMordor]

I thought it was cooperation in the hunt and the eating of meat that contributed to the growth in brain size. Before you can fight, you need to eat. Social organization follows and you need socialization to wage war.

It's all interrelated. A predator pack needs a large territory, and needs to defend that territory against competitors. Those who are best at utilizing their territory, and in defending it and expanding it, will pass on their genes. Those who are ineffective in defending their territory from encroachment will die out. Somehow, I think there's some applicability here with regards to our current immigration policy...

[stanz]

I think there's some applicability here with regards to our current immigration policy

Or lack of therein..... :)