Inter-menstrual intervals in captive bonobosPan paniscus H. VervaeckeL. Van ElsackerR. F. Verheyen OriginalPaper Pages: 283 - 289
Effects of age, dominance, and seasonal changes on proximity relationships in female Japanese macaques (Macaca fuscata) in a free-ranging group at Katsuyama Eiko Kato OriginalPaper Pages: 291 - 300
Relative orbitonasal overlap in african great apes and humans quantified by the automatic determination of horizontal and vertical lines of reference Mattheu SchmittbuhlJean-Marie Le MinorAndre Schaaf OriginalPaper Pages: 301 - 310
Digestive strategy of the asian colobine genusTrachypithecus Judith M. Caton OriginalPaper Pages: 311 - 325
Reproductive patterns and birth seasonality in a South-American breeding colony of common marmosets,Callithrix jacchus M. B. C. SousaH. P. A. PeregrinoM. T. S. Mota OriginalPaper Pages: 327 - 336
Infanticide in chimpanzees: Review of cases and a new within-group observation from the Kanyawara study group in Kibale National Park Adam Clark ArcadiRichard W. Wrangham OriginalPaper Pages: 337 - 351
Mitochondrial pseudogenes and phyletic relationships ofCebuella andCallithrix (Platyrrhini, primates) Miguel Angelo Martins MoreiraHéctor N. Seuánez OriginalPaper Pages: 353 - 364
Sociological and demographic characteristics of a recently found arsi gelada population in ethiopia Akio MoriToshitaka IwamotoAfework Bekele OriginalPaper Pages: 365 - 381
Tree structure and sex differences in arboreality among western lowland gorillas (Gorilla gorilla gorilla) at Bai Hokou, Central African Republic Melissa J. Remis OriginalPaper Pages: 383 - 396
Peering in mature, captive bonobos (Pan paniscus) Christine M. JohnsonRebecca E. FrankDanielle Flynn OriginalPaper Pages: 397 - 407
Vertical distribution of wild Yakushima macaques (Macaca fuscata yakui) in the western area of Yakushima Island, Japan: Preliminary report Shinichi YoshihiroMasaru OhtakeYukio Takahata Research Report Pages: 409 - 415
