Initiation and solicitation in male-female grooming in a wild Japanese macaque troop on yakushima island Takahiro Tsukahara OriginalPaper Pages: 147 - 156
Rates of predation on mammals by gombe chimpanzees, 1972–1975 R. W. WranghamE. van Zinnicq Bergmann Riss OriginalPaper Pages: 157 - 170
Social behaviour and infant carrying in a group of moustached tamarins,Saguinus mystax (primates: Platyrrhini: Callitrichidae), on Padre Isla, Peruvian Amazonia Eckhard W. Heymann OriginalPaper Pages: 183 - 196
Comparison of affiliative behaviors between old and recently established pairs of golden lion tamarin,Leontopithecus rosalia Julio César Ruiz OriginalPaper Pages: 197 - 204
Threat calls in alliance formation by members of a captive group of Japanese monkeys Shoji Machida OriginalPaper Pages: 205 - 211
Mother-infant interactions of wild-born, individually-caged cynomolgus monkeys (Macaca fascicularis) during the first 14 weeks of infant life Masayuki NakamichiFumiaki ChoTetsuhiro Minami OriginalPaper Pages: 213 - 224
Sexual preferences during artificial menstrual cycles in social groups of rhesus monkeys (Macaca mulatta) Richard P. MichaelDoris Zumpe OriginalPaper Pages: 225 - 241
Copulatory behavior unaccompanied by ovulation in the Japanese monkey (Macaca fuscata) Hideo NigiShin-ichi HayamaRyuzo Torii OriginalPaper Pages: 243 - 250
Hour of delivery in cynomolgus monkeys under indoor individually-caged conditions Michihiro T. SuzukiTakahiro OnoFumiaki Cho OriginalPaper Pages: 251 - 255
Relative brain size, stratification, and social structure in anthropoids Toshiyuki Sawaguchi OriginalPaper Pages: 257 - 272
Craniometric allometry in the thicktailed bushbabyOtolemur Crassicaudatus Julius A. Kieser OriginalPaper Pages: 273 - 281
Neocortical development and social structure in primates Toshiyuki SawaguchiHiroko Kudo Short Communication Pages: 283 - 289
Standing and climbing a pole by members of a captive group of Japanese monkeys Shoji Machida Short Communication Pages: 291 - 298
Survey and census of the hoolock gibbon in West Garo Hills, Northeast India J. R. B. AlfredJ. P. Sati Research Report Pages: 299 - 306
