Heritability of digit ratio (2D:4D) in rhesus macaques (Macaca mulatta) Emma NelsonMartin Voracek News and Perspectives 31 October 2009 Pages: 1 - 5
Preference for consonant music over dissonant music by an infant chimpanzee Tasuku SugimotoHiromi KobayashiKazuhide Hashiya Original Article 22 July 2009 Pages: 7 - 12
The first case of dental flossing by a Japanese macaque (Macaca fuscata): implications for the determinants of behavioral innovation and the constraints on social transmission Jean-Baptiste LecaNoëlle GunstMichael A. Huffman Original Article 10 July 2009 Pages: 13 - 22
Locomotor evolution of Mesopithecus (Primates: Colobinae) from Greece: evidence from selected astragalar characters Dionisios YoulatosGeorge D. Koufos Original Article 14 August 2009 Pages: 23 - 35
Of how much concern are the ‘least concern’ species? Distribution and conservation status of bonnet macaques, rhesus macaques and Hanuman langurs in Karnataka, India Honnavalli N. KumaraShanthala KumarMewa Singh Original Article 02 September 2009 Pages: 37 - 42
Behavioral modifications in northern bearded saki monkeys (Chiropotes satanas chiropotes) in forest fragments of central Amazonia Sarah Ann BoyleAndrew T. Smith Original Article 12 September 2009 Pages: 43 - 51
Genetic architecture of two red ruffed lemur (Varecia rubra) populations of Masoala National Park Vololoniaina R. RazakamaharavoSusie M. McGuireRick A. Brenneman Original Article 10 October 2009 Pages: 53 - 61
Visual preference in a human-reared agile gibbon (Hylobates agilis) Masayuki TanakaMakiko Uchikoshi Original Article 31 October 2009 Pages: 63 - 67
Entamoeba histolytica and E. dispar infections in captive macaques (Macaca fascicularis) in the Philippines Windell L. RiveraJohn Anthony D. L. YasonDavin Edric V. Adao Original Article 28 October 2009 Pages: 69 - 74
Stochastic variation in sex ratios in infant mortality rates due to small samples in provisioned Japanese macaque (Macaca fuscata) populations Hiroyuki Kurita Short Communication 07 July 2009 Pages: 75 - 78
Third-party grooming in a captive chimpanzee group Yvan I. Russell Short Communication 07 July 2009 Pages: 79 - 82
Infanticide following male takeover event in Verreaux’s sifaka (Propithecus verreauxi verreauxi) Brandie L. Littlefield Short Communication 05 August 2009 Pages: 83 - 86
Coprophagy in wild bonobos (Pan paniscus) at Wamba in the Democratic Republic of the Congo: a possibly adaptive strategy? Tetsuya Sakamaki Short Communication 31 October 2009 Pages: 87 - 90
Coalitions and male–male behavior in Alouatta palliata Pedro Américo D. DiasAriadna Rangel-NegrinDomingo Canales-Espinosa Short Communication 09 October 2009 Pages: 91 - 94