The Ai project
Cultural innovation and transmission of tool use in wild chimpanzees
Cognitive development in object manipulation by infant chimpanzees
Role of mothers in the acquisition of tool-use behaviours by captive infant chimpanzees
Finger drawing by infant chimpanzees ( Pan troglodytes )
Perception of depth from shading in infant chimpanzees ( Pan troglodytes )
Behavioural development in a matching-to-sample task and token use by an infant chimpanzee reared by his mother
Representing tools
A Capuchin monkey ( Cebus apella ) recognizes when people do and do not know the location of food
Silent invasion