Evolutionary psychology, sociobiology, human reproductive behaviour (Dalhousie University, Canada).

Behavioural and evolutionary ecology, especially sexual and natural selection (University of the Witwatersrand, Johannesburg, South Africa).

Eolutionary perspectives on Judaism and European marriage practices; evolutionary psychology (California State University, Long Beach).

Evolutionary significance of human physical attractiveness (University of Texas).

Adolescence, social dominance, marital relations, kin recognition through olfaction (Wayne State University, Michigan).

Human ethology, behavior and environment interactions (University of Vienna).

Life and theories of Charles Darwin; origins and validity of psychoanalysis; birth order, family dynamics and personality (University of California at Berkeley).

Language, cognitive science, evolutionary psychology (MIT).

Evolutionary psychology, emotion, sex and reproduction, food and eating, violence and risk-taking, conformity and cooperation (University of California at Los Angeles).