Hauser, Marc David2010-01-191988Hauser, Marc D. 1988. Variation in maternal responsiveness in free-ranging Vervet monkeys: A response to infant mortality risk? American Naturalist 131(4): 573-587.0003-0147http://nrs.harvard.edu/urn-3:HUL.InstRepos:3512199en-USVariation in Maternal Responsiveness in Free-Ranging Vervet Monkeys: A Response to Infant Mortality Risk?Journal Article2010-01-1910.1086/284807