Eating out of home (EOH) is a common practice worldwide but research gaps have been
identified. The aims of this review were (a) to find a common definition for EOH,(b) to …

Assumptions on the neural basis of cognition usually focus on cortical mechanisms. Birds
have no cortex, but recent studies in parrots and corvids show that their cognitive skills are …

How do humans develop the capacity to reason? In five studies, we examined infants'
emerging ability to make exclusion inferences using negation, as in the disjunctive syllogism …

Logical inference is often seen as an exclusively human and language-dependent ability,
but several nonhuman animal species search in a manner that is consistent with a deductive …

The last several decades of research on avian cognition have revealed surprising parallels
between the abilities of birds—most notably corvids—and great apes. Parrots, albeit far less …

Given that both sexes of most parrots learn new vocalizations throughout life and produce
them in diverse social contexts, whereas few songbird species combine all these traits, why …

Thoroughly updated for its third edition with the latest research in the field, this innovative
text delivers an apt and comprehensive introduction to the rich and complex world of animal …

Elucidating the nature, use, and origin of knowledge in animals is one of the major
endeavors of comparative psychology. Two aspects of knowledge used in inferential …

Highlights•We used an object choice task to test elephant sensory perception.•We tested
whether elephants use acoustic or olfactory cues to find food.•Elephants did not use acoustic …

Communication, when defined as an act intended to affect the psychological state of another
individual, demands the use of inference. Either the signaler, the recipient, or both must …