Analysis of brood sex ratios: implications of offspring clustering Sven KrackowEmil Tkadlec Review Pages: 293 - 301
Evidence of unconstrained directional selection for male tallness Ulrich MuellerAllan Mazur Original Article Pages: 302 - 311
Offspring sex ratio is unrelated to male attractiveness in dark-eyed juncos (Junco hyemalis) Jennifer L. GrindstaffAlex C. BuerkleEllen D. Ketterson Original Article Pages: 312 - 316
Echolocation behavior and signal plasticity in the Neotropical bat Myotis nigricans (Schinz, 1821) (Vespertilionidae): a convergent case with European species of Pipistrellus? Björn M. SiemersElisabeth K. KalkoHans-Ulrich Schnitzler Original Article Pages: 317 - 328
Determinants of group size in the red colobus monkey (Procolobus badius): an evaluation of the generality of the ecological-constraints model Thomas R. GillespieColin A. Chapman Original Article Pages: 329 - 338
Factors which affect the occurrence of cannibalism and the broad-headed "cannibal" morph in larvae of the salamander Hynobius retardatus Hirofumi MichimaeMasami Wakahara Original Article Pages: 339 - 345
Female choice in the guppy (Poecilia reticulata): the interaction between male color and display Astrid Kodric-BrownPaul F. Nicoletto Original Article Pages: 346 - 351
Individual and collective decision-making during nest site selection by the ant Leptothorax albipennis E. Mallon S. Pratt N. Franks Original Article Pages: 352 - 359
Invest in arms: behavioural and energetic implications of multiple autotomy in starfish (Asterias rubens) K. Ramsay M. Kaiser C. Richardson Original Article Pages: 360 - 365
Regulation of ovary activation in worker honey-bees (Apis mellifera): larval signal production and adult response thresholds differ between anarchistic and wild-type bees B. Oldroyd T. Wossler F. Ratnieks Original Article Pages: 366 - 370
Worker policing and worker reproduction in Apis cerana Benjamin P. OldroydLuke A. HallingFrancis L. Ratnieks Original Article Pages: 371 - 377
'Voyeurism' prolongs copulation in the dragon lizard Ctenophorus fordi Mats Olsson Original Article Pages: 378 - 381
The phenology of a Neotropical ant assemblage: evidence for continuous and overlapping reproduction Michael KaspariJohn PickeringDonald Windsor Original Article Pages: 382 - 390