The Journal of Comparative Psychology publishes original empirical and theoretical research from a comparative perspective on the behavior, cognition, perception, and social relationships of diverse species. Studies can be descriptive or experimental and can be conducted in the field or in captivity. Papers in areas such as behavior genetics, behavioral rhythms, communication, comparative cognition, behavioral biology of conservation and animal welfare, development, endocrine-behavior interactions, evolutionary psychology, methodology, phylogenetic comparisons, orientation and navigation, sensory and perceptual processes, social behavior and social cognition are especially welcome. Both Regular Articles and Brief Communications will be considered.