Kin conflict over caste determination in social Hymenoptera Andrew F. G. BourkeFrancis L. W. Ratnieks REVIEW Pages: 287 - 297
Alpha-male paternity in elephant seals A. Rus HoelzelBurney J. Le BoeufClaudio Campagna ORIGINAL ARTICLE Pages: 298 - 306
Scent-marking behavior in wild groups of common marmosets (Callithrix jacchus) Cristina Lazaro-PereaCharles T. SnowdonMaria de Fátima Arruda ORIGINAL ARTICLE Pages: 313 - 324
Offspring sex ratio response to host size in the parasitoid wasp Spalangia endius M. E. NapoleonB. H. King ORIGINAL ARTICLE Pages: 325 - 332
Association patterns of sailfin mollies (Poecilia latipinna): alternative hypotheses Caitlin Gabor ORIGINAL ARTICLE Pages: 333 - 340
Song sharing in two populations of song sparrows (Melospiza melodia) Christopher E. HillS. Elizabeth CampbellMichael D. Beecher ORIGINAL ARTICLE Pages: 341 - 349
Males as infant protectors in Hanuman langurs (Presbytis entellus) living in multimale groups – defence pattern, paternity and sexual behaviour Carola BorriesKristin LaunhardtPaul Winkler ORIGINAL ARTICLE Pages: 350 - 356
The genetic mating system of a sex-role-reversed pipefish (Syngnathus typhle): a molecular inquiry Adam G. JonesGunilla RosenqvistJohn C. Avise ORIGINAL ARTICLE Pages: 357 - 365