2. Nature/nurture

3. Strategies and tactics in behavior
game theory
hawk versus dove game
prisoner's dilemma

4. Classical ethology
Niko Tinbergen
sign stimulus
innate releasing mechanism
fixed action pattern
Konrad Lorenz
imprinting
critical period
Karl von Frisch
color vision in bees
dance language of bees

5. It's a different world: assumptions about perception