Green car to do to work? To remain permanently?

When can she begin working legally?

• The importance of The importance of cultureculture– Nature vs. nurtureNature vs. nurture

• Brain sizeBrain size• The Environment The Environment

of Evolutionary of Evolutionary Adaptedness Adaptedness (EEA)(EEA)

Studying human behavioral ecology

• Sexual Sexual behaviourbehaviour

• Parent-Parent-offspring offspring conflictconflict

– HomicideHomicide

Domains

• Usually serially Usually serially monogamousmonogamous

• PolygygnyPolygygny– … … and resource and resource

distributiondistribution– … … and size and size

dimorphismdimorphism

Mating systems

• Men prefer beauty, women Men prefer beauty, women resourcesresources

• Beauty across culturesBeauty across cultures– … … and FAand FA

Sexual selection I

Sexual selection II

Sex ratios at birth • “The United

States had a small army, but it drafted four million men and by summer 1918 was sending 10,000 fresh soldiers to France every day”

• In uteroIn utero• Crying Crying • Step-Step-

parents and parents and child abusechild abuse

Parent-offspring conflict

Mother’s age and infanticide

Child’s age and infanticide

Mother’s age and matricide

Risk taking and future discounting

• Optimal diet breadthOptimal diet breadth• Risk-sensitive foragingRisk-sensitive foraging• AggregationAggregation• AltruismAltruism• Honest signalingHonest signaling• Sensory ecologySensory ecology• ParasitismParasitism

Can BE help explain human behavior?