Seasonal variation in the degree of heterospecific association of two syntopic hyraxes (Heterohyrax brucei and Procavia capensis) exhibiting synchronous parturition Ronald E. BarryPeter J. Mundy Original Article Pages: 177 - 181
Mixed-species shoaling in fish: the sensory mechanisms and costs of shoal choice Ashley J. WardStephen AxfordJens Krause Original Article Pages: 182 - 187
Phylogenetic analyses of sexual selection and sexual size dimorphism in pinnipeds Patrik LindenforsBirgitta S. TullbergMartin Biuw Original Article Pages: 188 - 193
The role of information in mate-choice copying in female sailfin mollies (Poecilia latipinna) Klaudia WitteBianka Noltemeier Original Article Pages: 194 - 202
Mean colony relatedness is a poor predictor of colony structure and female philopatry in the communally breeding Bechstein's bat (Myotis bechsteinii) Gerald KerthKamran SafiBarbara König Original Article Pages: 203 - 210
The presence of eggs in the nest and female choice in common freshwater gobies (Rhinogobius brunneus) Ho SukJae C. Choe Original Article Pages: 211 - 215
Responses to playback of whistle songs and normal songs in male nightingales: effects of song category, whistle pitch, and distance Marc NaguibRoger MundryDietmar Todt Original Article Pages: 216 - 223
Male reproductive tactics in the mallard, Anas platyrhynchos: social and hormonal mechanisms Ellen S. Davis Original Article Pages: 224 - 231
Increasing foraging group size increases scrounger use and reduces searching efficiency in nutmeg mannikins (Lonchura punctulata) Isabelle Coolen Original Article Pages: 232 - 238
The influence of nectar secretion rates on the responses of bumblebees (Bombus spp.) to previously visited flowers Jane C. StoutDave Goulson Original Article Pages: 239 - 246
Bi-directional sex change: testing the growth-rate advantage model Philip L. Munday Original Article Pages: 247 - 254
The role of companionship in the dispersal of white rhinoceroses (Ceratotherium simum) Adrian M. ShraderNorman Owen-Smith Original Article Pages: 255 - 261
Mixed-directionality of killer whale stereotyped calls: a direction of movement cue? Patrick J. Miller Original Article Pages: 262 - 270