Infanticide in seasonally breeding multimale groups of Hanuman langurs (Presbytis entellus) in Ramnagar (South Nepal) Carola Borries ORIGINAL ARTICLES Pages: 139 - 150
Division of labor between undertaker specialists and other middle-aged workers in honey bee colonies Stephen T. TrumboZhi-Yong HuangGene E. Robinson Pages: 151 - 163
Song rates of dark-eyed juncos do not increase when females are fertile Russell C. TitusC. Ray ChandlerVal Nolan, Jr. Pages: 165 - 169
Testosterone stress does not increase asymmetry of a hormonally mediated sexual ornament in a lizard José P. VeigaAlfredo SalvadorJosé Martin Pages: 171 - 176
Inbreeding-based bias in parental responsiveness to litters of oldfield mice Susan W. Margulis Pages: 177 - 184
Subordinate males are more likely to help if unrelated to the breeding female in cooperatively breeding white-browed scrubwrens Robert D. MagrathLinda A. Whittingham Pages: 185 - 192
Red-winged blackbird parental investment following brood parasitism by brown-headed cowbirds: is parentage important? Ethan D. Clotfelter Pages: 193 - 201
Ranging of songs in Carolina wrens: effects of familiarity with the song type on use of different cues Marc Naguib ERRATUM Pages: 203 - 203