Non-antagonistic relations between wild bonobos and two species of guenons Hiroshi Ihobe OriginalPaper Pages: 351 - 357
Morphological changes of female reproductive organs of Japanese monkeys with reproductive conditions Shin-ichi HayamaShinji KamiyaHideo Nigi OriginalPaper Pages: 359 - 367
The behavior of peripheral males during the mating season inMacaca fuscata Katharine M. JackM. S. M. Pavelka OriginalPaper Pages: 369 - 377
Sexual behavior of adult male chimpanzees of the Mahale Mountains national park, Tanzania Toshisada Nishida OriginalPaper Pages: 379 - 398
Genetic variation of blood proteins within and between local populations of grivet monkey (Cercopithecus aethiops aethiops) in central Ethiopia Makoto K. ShimadaTakayoshi Shotake OriginalPaper Pages: 399 - 414
Drinking from tails: Social learning of a novel behaviour in a group of ring-tailed lemurs (Lemur catta) Geoffrey R. HoseyMarie JacquesAngela Pitts Short Communication Pages: 415 - 422
A new lorisid humerus from the early miocene of Uganda Daniel L. GeboLaura MacLatchyRobert Kityo Short Communication Pages: 423 - 427
The rediscovery ofCallicebus personatus barbarabrownae in northeastern brazil with a new western limit for its distribution Jader Marinho-FilhoEd Wilson VerĂssimo Research Report Pages: 429 - 433