Exchange of objects between humans and captive western lowland gorillas Raphaël ChalmeauPatricia Peignot OriginalPaper Pages: 389 - 398
Successful artificial insemination for indoor breeding in the Japanese monkey (Macaca fuscata) and the cynomolgus monkey (Macaca fascicularis) Ryuzo ToriiHideo Nigi OriginalPaper Pages: 399 - 406
Urine collection in the common marmoset (Callithrix jacchus) and its applicability to endocrinological studies Ryuzo ToriiMakoto MoroHideo Nigi OriginalPaper Pages: 407 - 417
Development of responsiveness to novel objects in the titi monkey,Callicebus moloch D. J. MayeauxW. A. Mason OriginalPaper Pages: 419 - 431
Early behavioral development and temperamental traits in mother- vs peer-reared rhesus monkeys A. S. ClarkeM. Snipes OriginalPaper Pages: 433 - 448
Seasonal variation in the positional behavior of red howling monkeys (Alouatta seniculus) Dionisios Youlatos OriginalPaper Pages: 449 - 457
Effect of habitat structure on positional behavior and support use in three species of lemur Marian DagostoNayuta Yamashita OriginalPaper Pages: 459 - 472
Variations in competitive mechanisms of captive male hamadryas-like baboons in two feeding situations Carlos Gil-BurmannFernando PeláezSusana Sánchez OriginalPaper Pages: 473 - 484
The nature and evolution of intelligence in orangutans (Pongo pygmaeus) Anne E. Russon OriginalPaper Pages: 485 - 503
Buttress drumming by wild chimpanzees: Temporal patterning, phrase integration into loud calls, and preliminary evidence for individual distinctiveness Adam Clark ArcadiDaniel RobertChristophe Boesch OriginalPaper Pages: 505 - 518
Morphometric analysis ofMacaca arctoides andM. thibetana in relation to other macaque species Ruliang PanN. G. JablonskiL. Freedman OriginalPaper Pages: 519 - 537
Peer-rearing influences subsequent maternal behavior and infant survival in a newly formed herpes B-virus negative rhesus macaque group Deborah L. GoinDeborah A. Gust Short Communication Pages: 539 - 543
Tool use by a red howler monkey (Alouatta seniculus) towards a two-toed sloth (Choloepus didactylus) Cécile Richard-HansenNatalia BelloJ. -Christophe Vié Short Communication Pages: 545 - 548
Sex differences in food acquisition and aggression in captive common marmosets (Callithrix jacchus) Anne M. Michels Short Communication Pages: 549 - 556