Biological study of animal behavior; comprises study of proximate causes of behavior, including external stimulation and internal physiological mechanisms and states; development, including the ontogenesis and genetics of behavior; biological function, including immediate effects and ultimate consequences; and evolutionary origins and modifications
In biology, the study of the evolutionary origins and adaptiveness of the patterns of behavior that characteristically differ among species. Not to be confused with ethnology, the anthropological study of cultures.
Ethology is the scientific study of animal behaviour (particularly of social animals such as primates and canids.), and is a branch of zoology. A scientist who practises ethology is called an ethologist.