On Editing the International Journal of Primatology Joanna M. Setchell Editorial 05 February 2012 Pages: 1 - 9
Obituary: Toshisada Nishida (March 3, 1941–June 7, 2011) John C. MitaniFrans B. M. de WaalJuichi Yamigiwa EditorialNotes 15 December 2011 Pages: 10 - 18
Positional Behavior of Delacour’s Langurs (Trachypithecus delacouri) in Northern Vietnam Catherine WorkmanDaniel Schmitt OriginalPaper 27 October 2011 Pages: 19 - 37
Erratum to: Positional Behavior of Delacour’s Langurs (Trachypithecus delacouri) in Northern Vietnam Catherine WorkmanDaniel Schmitt Erratum 14 January 2012 Pages: 38 - 39
Western Purple-faced Langurs (Semnopithecus vetulus nestor) Feed on Ripe and Ripening Fruits in Human-modified Environments in Sri Lanka Jinie D. S. Dela OriginalPaper 04 November 2011 Pages: 40 - 72
Male Mating Tactics in Captive Rhesus Macaques (Macaca mulatta): The Influence of Dominance, Markets, and Relationship Quality Jorg J. M. MassenAnne M. Overduin-de VriesElisabeth H. M. Sterck OriginalPaper Open access 10 November 2011 Pages: 73 - 92
Fission–Fusion Dynamics in Southern Muriquis (Brachyteles arachnoides) in Continuous Brazilian Atlantic Forest Rebecca C. ColesPhyllis C. LeeMauricio Talebi OriginalPaper 18 November 2011 Pages: 93 - 114
The Influence of Seasonal Variation on Chimpanzee (Pan troglodytes schweinfurthii) Fallback Food Consumption, Nest Group Size, and Habitat Use in Gishwati, a Montane Rain Forest Fragment in Rwanda Rebecca L. ChancellorAaron S. RundusSylvain Nyandwi OriginalPaper 30 November 2011 Pages: 115 - 133
Assessing Initial Reintroduction Success in Long-Lived Primates by Quantifying Survival, Reproduction, and Dispersal Parameters: Western Lowland Gorillas (Gorilla gorilla gorilla) in Congo and Gabon Tony KingChristelle ChamberlanAmos Courage OriginalPaper 30 November 2011 Pages: 134 - 149
Feeding Patterns and Dietary Profile of Nocturnal Southern Woolly Lemurs (Avahi meridionalis) in Southeast Madagascar Ivan NorsciaJean Baptiste RamanamanjatoJörg U. Ganzhorn OriginalPaper 02 December 2011 Pages: 150 - 167
Rivers as Barriers to Primate Distributions in Africa A. H. HarcourtM. A. Wood OriginalPaper 06 December 2011 Pages: 168 - 183
Do Forest Composition and Fruit Availability Predict Demographic Differences Among Groups of Territorial Owl Monkeys (Aotus azarai)? Griëtte van der HeideEduardo Fernandez-DuqueCecilia Paola Juárez OriginalPaper 06 December 2011 Pages: 184 - 207
Education Program Evaluation at Multiple Primate Sanctuaries in Equatorial Africa Christopher W. KuharTammie L. BettingerDoug Cress OriginalPaper 24 December 2011 Pages: 208 - 217
Habitat Use and Trophic Niche Overlap of Two Sympatric Colobines, Presbytis potenziani and Simias concolor, on Siberut Island, Indonesia Susilo HadiThomas ZieglerJ. Keith Hodges OriginalPaper 24 December 2011 Pages: 218 - 232
Howlers Are Able to Survive in Eucalyptus Plantations Where Remnant and Regenerating Vegetation Is Available Yadira Magali Bonilla-SánchezJuan Carlos Serio-SilvaColin A. Chapman OriginalPaper 29 December 2011 Pages: 233 - 245
What Role Do Mothers Play in the Gestural Acquisition of Bonobos (Pan paniscus) and Chimpanzees (Pan troglodytes)? Christel SchneiderJosep CallKatja Liebal OriginalPaper 30 December 2011 Pages: 246 - 262
In Vitro Fermentation of Dietary Carbohydrates Consumed by African Apes and Monkeys: Preliminary Results for Interpreting Microbial and Digestive Strategy Joanna E. LambertVivek Fellner OriginalPaper 30 December 2011 Pages: 263 - 281
Anne M. Burrows and Lean T. Nash (Eds.): The Evolution of Exudativory in Primates. Developments in Primatology: Progress and Prospects (Series Editor R. H. Tuttle) Melanie Dammhahn Book Review 10 November 2011 Pages: 282 - 283
M. D. Gumert, A. Fuentes, and L. Jones-Engel (eds): Monkeys on the Edge: Ecology and Management of Long-Tailed Macaques and Their Interface with Humans Crystal M. Riley Book Review 06 December 2011 Pages: 284 - 286