This document summarizes different types of animal behaviors including reflexes, instincts, learning, communication, imprinting, aggression, territory, and circadian rhythms. Reflexes are automatic responses that do not involve the brain, while instincts are innate complex patterns of behavior. Animals communicate through sound, light, and pheromones. Imprinting is why young animals follow their parents, first described by Konrad Lorenz. Learning develops through experience, trials, and conditioning. Courtship behaviors occur before mating. Territories are areas animals defend. Stimuli prompt responses in stimulus-response behaviors. Nocturnal animals are active at night, having adaptations like large eyes, while diurnal animals are active during the day.