0.56 Fernanda P. Tabacow Sérgio L. Mendes Karen B. Strier, Spread of a Terrestrial Tradition in an Arboreal Primate, American Anthropologist, 2009.

{ human behavior evolution social }	0.56
{ university press american pp }	0.10
{ number data group table }	0.09
{ women age population female }	0.07