Two major theoretical approaches have dominated the quest for uniquely human cognitive
abilities: a developmentalist approach stressing the importance of environmental and social …

This paper aims to review a long-term research project exploring the chimpanzee mind
within historical and ecological contexts. The Ai project began in 1978 and was directly …

Chimpanzees (Pan troglodytes) are the most proficient and versatile users of tools in the
wild. How such skills become integrated into the behavioural repertoire of wild chimpanzee …

Humans and chimpanzees last shared a common ancestor about 5 to 6 million years ago.
Single-nucleotide substitutions occur at a mean rate of 1.23% between copies of the human …

Delayed reciprocity is a potentially important mechanism for cooperation to occur. It is
however rarely reported among animals, possibly because it requires special skills like the …

Great apes appear to be the nonhuman primates most capable of recognizing trading
opportunities and engaging in transfers of commodities with conspecifics. Spontaneous …

Humans can retain memories for months to decades. In contrast, relatively few studies have
examined such very long-term memory in nonhuman animals. We, therefore, investigated …

We directly compared chimpanzee infants and human infants for categorical representations
of three global‐like categories (mammals, furniture and vehicles), using the familiarization …

According to one currently influential line of thinking, the evolution of ostensive
communication was a prerequisite for the evolution of human language. In this article, I …

An infant chimpanzee's joint visual attention to objects behind him was investigated. A
recent study has shown that a 13‐month‐old infant chimpanzee can follow human social …