Review 2 1. Can Human Cooperation be Explained by Group Selection?

NJ River , Prentice Hall , JB Silk , SF Brosnan
Economic Psychology 30 ( 3) 358 -67

2012
Comparing amygdala connectivity between monkeys, apes, and humans using diffusion tensor imaging.

E Hecht , D Gutman , M Glasser , J Mascaro
American Journal of Physical Anthropology 114 -115

1
2008