Seed predation by bonobos (Pan paniscus) at Kokolopori, Democratic Republic of the Congo Alexander V. GeorgievMelissa Emery ThompsonRichard W. Wrangham News and Perspectives 10 August 2011 Pages: 309 - 314
Tool-use to obtain honey by chimpanzees at Bulindi: new record from Uganda Matthew R. McLennan Original Article 03 June 2011 Pages: 315 - 322
Frequency of removal movements during social versus self-grooming among wild chimpanzees Koichiro Zamma Original Article 23 August 2011 Pages: 323 - 328
Natural history of Camponotus ant-fishing by the M group chimpanzees at the Mahale Mountains National Park, Tanzania Hitonaru Nishie Original Article 30 August 2011 Pages: 329 - 342
Possible organizational effect of sex steroids on the stabilization of manual preference in female common marmosets (Callithrix jacchus) Bernadette Serra RegoMaria Helena Constantino SpyridesMaria Bernardete Cordeiro de Sousa Original Article 07 May 2011 Pages: 343 - 349
Feeding ecology and activity pattern of black-fronted titi monkeys (Callicebus nigrifrons) in a semideciduous tropical forest of southern Brazil Christini Barbosa CaselliEleonore Zulnara Freire Setz Original Article 23 August 2011 Pages: 351 - 359
Social organization of a stable natal group of captive Guyanese squirrel monkeys (Saimiri sciureus sciureus) Meredith J. BashawChelsea McIntyreNicole D. Salenetri Original Article 10 August 2011 Pages: 361 - 371
Copulation patterns in captive hamadryas baboons: a quantitative analysis Florian NitschSabine StueckleDietmar Zinner Original Article Open access 28 June 2011 Pages: 373 - 383
Infanticide by a male spectral tarsier (Tarsius spectrum) Sharon Gursky-Doyen Original Article 19 August 2011 Pages: 385 - 389
Tamarind tree seed dispersal by ring-tailed lemurs Anne S. Mertl-MillhollenKathryn Blumenfeld-JonesHantanirina Rasamimanana Original Article 01 June 2011 Pages: 391 - 396
Professor Toshisada Nishida, a pioneer and a leading scientist in Primatology Editorial Office Primates In memoriam 16 September 2011 Pages: 397 - 398
The Primates 2011 Most-Cited Paper Award is conferred upon Dr. Colin A. Chapman Announcement 13 October 2011 Pages: 399 - 399