Hierarchy and social status in Budongo chimpanzees Nicholas E. Newton-Fisher Original Article 22 January 2004 Pages: 81 - 87
Urinary testosterone-metabolite levels and dominance rank in male and female bonobos (Pan paniscus) Adinda SannenLinda Van ElsackerMarcel Eens Original Article 20 December 2003 Pages: 89 - 96
Preliminary analysis of Nacholapithecus scapula and clavicle from Nachola, Kenya Brigitte SenutMasato NakatsukasaHidemi Ishida Original Article 09 March 2004 Pages: 97 - 104
Diet and activity in black howler monkeys (Alouatta pigra) in southern Belize: does degree of frugivory influence activity level? Mary S. M. PavelkaKyle Houston Knopff Original Article 21 January 2004 Pages: 105 - 111
An experimental study of leaf swallowing in captive chimpanzees: insights into the origin of a self-medicative behavior and the role of social learning Michael A. HuffmanSatoshi Hirata Original Article 23 January 2004 Pages: 113 - 118
Vocal individual discrimination in Japanese monkeys Miyuki CeugnietAkihiro Izumi Original Article 13 December 2003 Pages: 119 - 128
Quantitative analyses of cross-sectional shape of the distal radius in three species of macaques Yasuhiro Kikuchi Original Article 19 December 2003 Pages: 129 - 134
A comparison of buttress drumming by male chimpanzees from two populations Adam Clark ArcadiDaniel RobertFrancis Mugurusi Original Article 21 January 2004 Pages: 135 - 139
On the possible adaptive value of coprophagy in free-ranging chimpanzees Sabrina KriefAliette JamartClaude-Marcel Hladik Original Article 20 February 2004 Pages: 141 - 145
Molecular cloning of protamine-2 and expression with aging in Japanese monkey (Macaca fuscata) Sung Sook YuOsamu Takenaka Short Communication 24 February 2004 Pages: 147 - 150
Field testing a global positioning system (GPS) collar on a Japanese monkey: reliability of automatic GPS positioning in a Japanese forest David S. SpragueHajime KabayaKo Hagihara Short Communication 21 January 2004 Pages: 151 - 154
Indices of environmental temperatures for primates in open habitats Russell A. HillTony WeingrillS. Peter Henzi Erratum 20 February 2004 Pages: 155 - 155