Personality Dimensions in Spotted Hyenas (Crocuta crocuta)
Use of Experimenter-Given Cues During Object-Choice Tasks by Chimpanzees (Pan troglodytes), an Orangutan (Pongo pygmaeus), and Human Infants (Homo sapiens)
Spatial Versus Nonspatial Relational Learning in Free-Ranging Fox Squirrels (Sciurus niger)
Object Permanence in Orangutans (Pongo pygmaeus) and Squirrel Monkeys (Saimiri sciureus)
Timing of Presentation of Prenatal Auditory Stimulation Alters Auditory and Visual Responsiveness in Bobwhite Quail Chicks (Colinus virginianus)
Modified Sensory Features of Social Stimulation Alter the Perceptual Responsiveness of Bobwhite Quail Chicks (Colinus virginianus)
Status, Age, and Sex Effects on Performance of Discrimination Tasks in Group-Tested Rhesus Monkeys (Macaca mulatta)
Hand Preferences in Unimanual and Coordinated-Bimanual Tasks by Tufted Capuchin Monkeys (Cebus apella)
Distinguishing Intentional From Accidental Actions in Orangutans (Pongo pygmaeus), Chimpanzees (Pan troglodytes), and Human Children (Homo sapiens)
Why Some Capuchin Monkeys (Cebus apella) Use Probing Tools (and Others Do Not)