Experiments indicate that selection against aggression in mammals can have multiple
effects on their morphology, physiology, behaviour and psychology, and that these results …

Although cooperation is a widespread phenomenon in nature, human cooperation exceeds
that of all other species with regard to the scale and range of cooperative activities. Here we …

Soon after Charles Darwin formulated his theory of evolution, primate cognition became a
major area of research. In this book, Michael Tomasello and Josep Call assess the current …

The cooperative abilities of captive chimpanzees, Pan troglodytes, in experiments do not
match the sophistication that might be predicted based on their naturally occurring …

We review studies demonstrating the ability of some animals to understand the human
pointing gesture. We present a 3-step analysis of the topic.(1) We compare and evaluate …

Bernard Thierry behavior is not infinitely plastic and that individuals in groups are not
independent players. Kummer (1971) captured this point when he wrote,“If a species …

Over the last two decades a large number of experiments have been conducted in which two
conspecifics, mainly vertebrates, could obtain rewards through cooperation. At least three …

Cooperation is widespread in nature, occurring in every taxa on Earth. Nevertheless, the
contexts in which cooperation occurs—and the forms it takes—vary widely. In this Review …

Numerous field researchers have described cooperative hunting in social carnivores, but
experimental evidence of cooperative problem solving typically derives from laboratory …

We used a cooperative pulling task to examine proximate aspects of cooperation in captive
brown capuchin monkeys, Cebus apella. Specifically, our goal was to determine whether …