Reciprocity and trades in wild West African chimpanzees

Tolerant food sharing and reciprocity is precluded by despotism among bonobos but not chimpanzees

(2010) Adrian V. Jaeggi et al.   AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY

Grooming reciprocity in wild male chimpanzees

(2010) Nicholas E. Newton-Fisher et al.   ANIMAL BEHAVIOUR

No evidence of short-term exchange of meat for sex among chimpanzees

(2010) Ian C. Gilby et al.   JOURNAL OF HUMAN EVOLUTION

Kinship and social bonds in female chimpanzees (Pan troglodytes)

(2009) Kevin Langergraber et al.   AMERICAN JOURNAL OF PRIMATOLOGY

Chimpanzees (Pan troglodytes) do not develop contingent reciprocity in an experimental task

(2009) Sarah Frances Brosnan et al.   ANIMAL COGNITION

Do chimpanzees (Pan troglodytes) spontaneously take turns in a reciprocal cooperation task?

(2009) Shinya Yamamoto et al.   JOURNAL OF COMPARATIVE PSYCHOLOGY

Wild Chimpanzees Exchange Meat for Sex on a Long-Term Basis

(2009) Cristina M. Gomes et al.   PLoS One

Do chimpanzees reciprocate received favours?

(2008) Alicia P. Melis et al.   ANIMAL BEHAVIOUR

Female grooming markets in a population of gray-cheeked mangabeys (Lophocebus albigena)

(2008) Rebecca L. Chancellor et al.   BEHAVIORAL ECOLOGY

The meat-scrap hypothesis: small quantities of meat may promote cooperative hunting in wild chimpanzees (Pan troglodytes)

(2008) Claudio Tennie et al.   BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY

Long-term reciprocation of grooming in wild West African chimpanzees

(2008) C. M Gomes et al.   PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

Grooming reciprocation among female primates: a meta-analysis

(2007) G. Schino et al.   Biology Letters