Human language and social cognition are closely linked: advanced social cognition is
necessary for children to acquire language, and language allows forms of social …

The nature of play in animals has been long debated, but progress is being made in
characterizing play and its variants, documenting its distribution across vertebrate and …

Some birds achieve primate-like levels of cognition, even though their brains tend to be
much smaller in absolute size. This poses a fundamental problem in comparative and …

A groundbreaking study into the formative role of play in our lives Sergio and Vivien Pellis
have synthesized three decades of empirical research to create a remarkable work …

This article has two goals. The first is to assess, in the face of accruing reports on the
ingenuity of great ape tool use, whether and in what sense human tool use still evidences …

How do chimpanzees say,'I want to have sex with you?'By clip** a leaf or knocking on a
tree trunk? How do they eat live aggressive ants? By using a short stick with one hand or …

The biological and psychological basis of pet therapy/animal-assisted therapy and what this
means for practice" A comprehensive, scientific foundation for human-animal …

Background Bystander affiliation (post-conflict affiliation from an uninvolved bystander to the
conflict victim) may represent an expression of empathy in which the bystander consoles the …

Despite the lack of a layered neocortex and fundamental differences in endbrain
organization in birds compared with mammals, intelligent species evolved from both …

Theory of mind is said to be uniquely human. Is this statement justified? Thirty years of
research on a variety of species has produced differences in opinion, from unequivocal …