A sternal gland in the Siamang Gibbon(Hylobates syndactylus) Thomas Geissmann OriginalPaper Pages: 1 - 15
Ecological constraints on the grouping of wild orang-utans (Pongo pygmaeus) in the Gunung Leuser National Park, Sumatra, Indonesia J. SugardjitoI. J. A. te BoekhorstJ. A. R. A. M. van Hooff OriginalPaper Pages: 17 - 41
Ranging, activity rhythms, and sociality in free-rangingTarsius bancanus: A preliminary report Robin Huw CromptonPatrick Mahedi Andau OriginalPaper Pages: 43 - 71
A new interpretation of the social organization and mating system of the Callitrichidae R. W. SussmanP. A. Garber OriginalPaper Pages: 73 - 92