our little cousins may join us someday...

I don't know. Most theories of the evolution of human intelligence require really unusual and unique conditions, such as a drought at just the right time (creating thirst, perhaps leading to the evolution of planning for the future), and creating fire thereafter (to keep people together at night, and perhaps leading to creativity).

---

"Der Mensch kann was er will; er kann aber nicht wollen was er will." (Man can do what he wills but he cannot will what he wills.) - Arthur SchopenhauerHelp inform the masses - contribute to the EvoWiki today!

Hmm. I was just recalling something I saw in the BBC series Walking with Cavemen. You'd be in the same boat as me when it comes to finding research articles on it.

---

"Der Mensch kann was er will; er kann aber nicht wollen was er will." (Man can do what he wills but he cannot will what he wills.) - Arthur SchopenhauerHelp inform the masses - contribute to the EvoWiki today!

This is a fine example of a sentence that pretty much proves itself true.The study of insects = Entomology
The study of ants = Myrmecology

---

"Der Mensch kann was er will; er kann aber nicht wollen was er will." (Man can do what he wills but he cannot will what he wills.) - Arthur SchopenhauerHelp inform the masses - contribute to the EvoWiki today!