First, there is the possibility that the larger brain did not evolve for intelligence as much as for better memory. Persistence hunting requires more memory than plucking fruits off the trees.
Do you mind if I freepmail you about this? I have some rather convoluted questions in mind, and I'd rather not have people accidentally jumping to conclusions while I'm setting up the background for the questions.
Flame wars suck, reasoned discussion is fun.
Cheers!
You can include me on the FreepMails as well, if you wish. I'll be glad to help if I can.
OK by me. My specialty is more on the bones side, so I can't help you much on the "soft" sciences (genetics, brain studies, chemistry, etc.). ;-)