Fruit availability and chimpanzee party size at Kahuzi montane forest, Democratic Republic of Congo A. Kanyunyi Basabose Original Article 23 June 2004 Pages: 211 - 219
When does play panting occur during social play in wild chimpanzees? Takahisa Matsusaka Original Article 07 July 2004 Pages: 221 - 229
Food transfer between chimpanzee mothers and their infants Ari UenoTetsuro Matsuzawa Original Article 03 July 2004 Pages: 231 - 239
Sleeping sites of Rhinopithecus bieti at Mt. Fuhe, Yunnan Ze-Hua LiuQi-Kun Zhao Original Article 27 July 2004 Pages: 241 - 248
Sex differences in common Marmosets (Callithrix jacchus) in response to an unfamiliar food task Maria E. YamamotoCamila DomeniconiHilary Box Original Article 22 June 2004 Pages: 249 - 254
Use of leaves to inspect ectoparasites in wild chimpanzees: a third cultural variant? Clea AssersohnAndrew WhitenJoseph Karamagi Original Article 04 June 2004 Pages: 255 - 258
Analysis of infant carrying in large, well-established family groups of captive marmosets (Callithrix jacchus) Debbie A. MillsColin P. WindleRosalind M. Ridley Original Article 10 July 2004 Pages: 259 - 265
Behavioral economic analysis of water intake in a laboratory rhesus macaque Masumi Wakita Short Communication 21 April 2004 Pages: 267 - 270
First experimental evidence for female mate choice in a nocturnal primate Mathias CraulElke ZimmermannUte Radespiel Short Communication 07 July 2004 Pages: 271 - 274
Intrapopulation differences in ant eating in the mountain gorillas of Bwindi Impenetrable National Park, Uganda Jessica GanasMartha M. Robbins Short Communication 10 July 2004 Pages: 275 - 278
Dorothy M. Fragaszy and Susan Perry (eds): The biology of traditions: models and evidence Michio Nakamura Book Review 23 June 2004 Pages: 279 - 281
Joanna M. Setchell and Deborah J. Curtis (eds): Field and laboratory methods in primatology AgustÃn Fuentes Book Review 13 July 2004 Pages: 283 - 284
Personality research with non-human primates: theoretical formulation and methods Kosuke Itoh Erratum 06 August 2004 Pages: 285 - 285