Psychology · Evolutionary & Biological Psychology
A topic within Evolutionary & Biological Psychology, itself one of 8 topics in that field and part of Psychology.
2 works
Gordon G. Gallup
Marks chimpanzees with an odourless dye while they are anaesthetised and finds they touch the mark on their own body after seeing it in a mirror, the original evidence that a non-human animal can recognise itself.
David Premack & Guy Woodruff
Poses the question that named the field: whether a chimpanzee watching a human actor with a problem attributes to that actor unobservable states like purpose and knowledge, and reports experimental evidence that at least this one chimpanzee did.
link checked 17 Sept 2026