The study of vocal communication of wild mandrills in Cameroon in relation to their social structure Hiroko Kudo OriginalPaper Pages: 289 - 308
Sexual swelling, receptivity, and grouping of wild pygmy chimpanzee females at Wamba, Zaïre Takeshi Furuichi OriginalPaper Pages: 309 - 318
Preliminary observations of wild black-crested gibbons (Hylobates concolor concolor) in Yunnan province, people's republic of China Elliott H. HaimoffX. -J. YangN. Chen OriginalPaper Pages: 319 - 335
Activity rhythms and use of space of a group ofAotus azarae in Bolivia during the rainy season J. E. GarciaF. Braza OriginalPaper Pages: 337 - 342
Use of a mirror to direct their responses in Japanese monkeys (Macaca fuscata fuscata) Shoji Itakura OriginalPaper Pages: 343 - 352
Yawning, scratching, and protruded lips: Differential conditionability of natural acts in pigtail monkeys (Macaca nemestrina) Moutou LouboungouJames R. Anderson OriginalPaper Pages: 367 - 375
Reconstruction and re-evaluation of the skull ofHomo antiquus (hominoidea: Homininae) from Hadar Walter W. Ferguson OriginalPaper Pages: 377 - 391
The respiratory system of the genusCallithrix, the South American monkey Jorge Fernández SurribasIrene von Lawzewitsch OriginalPaper Pages: 393 - 402
The integration of an adult female gelada baboon (Theropithecus gelada) Regina MoosKlaus Immelmann Short Communication Pages: 403 - 409
Morphometric analysis of the zona pellucida and ooplasm of squirrel monkey (Saimiri sciureus) eggs Philip J. Chan Short Communication Pages: 411 - 415
Experimental findings on alliances and dominance rank: A comment A. H. Harcourt Note Pages: 417 - 419
