The psychological foundations of culture / John Tooby and Leda Cosmides -- On the use and misuse of Darwinism in the study of human behavior / Donald Symons -- Cognitive adaptations for social exchange / Leda Cosmides and John Tooby -- Two nonhuman primate models for the evolution of human food sharing : chimpanzees and callitrichids / W.C. McGrew and Anna T.C. Feistner -- Mate preference mechanisms : consequences for partner choice and intrasexual competition / David M. Buss -- The evolution of sexual attraction : evaluative mechanisms in women / Bruce J. Ellis -- The man who mistook his wife for a chattel / Margo Wilson and Martin Daly -- Pregnancy sickness as adaptation : a deterrent to maternal ingestion of teratogens / Margie Profet -- Nurturance or negligence : maternal psychology and behavioral preference among preterm twins / Janet Mann -- Human maternal vocalizations to infants as biologically relevant signals : an evolutionary perspective / Anne Fernald -- The social nature of play fighting and play chasing : mechanisms and strategies underlying cooperation and compromise / Michael J. Boulton and Peter K. Smith -- Natural language and natural selection / Steven Pinker and Paul Bloom -- The perceptual organization of colors : an adaptation to regularities of the terrestrial world? / Roger N. Shepard -- Sex differences in spatial abilities : evolutionary theory and data / Irwin Silverman and Marion Eals -- Evolved responses to landscapes / Gordon H. Orians and Judith H. Heerwagen -- Environmental preference in a knowledge-seeking, knowledge-using organism / Stephen Kaplan -- The evolution of psychodynamic mechanisms / Randolph M. Nesse and Alan T. Lloyd -- Beneath new culture is old psychology : gossip and social stratification / Jerome H. Barkow