Are naked and common mole-rats eusocial and if so, why? H. BurdaRodney L. HoneycuttAndreas Scharff Review Pages: 293 - 303
Is asynchronous hatching adaptive in herring gulls (Larus argentatus)? Lars HillströmMikael KilpiKai Lindström Original Article Pages: 304 - 311
Brood sex ratios, female harem status and resources for nestling provisioning in the great reed warbler (Acrocephalus arundinaceus) H. WesterdahlStaffan BenschTorbjörn von Schantz Original Article Pages: 312 - 318
Multiple song repertoire characteristics in the willow warbler (Phylloscopus trochilus): correlations with female choice and offspring viability D. GilPeter J. B. Slater Original Article Pages: 319 - 326
Quantitative variation in ecological and hormonal variables correlates with spatial organization of pronghorn (Antilocapra americana) males C. R. Maher Original Article Pages: 327 - 338
Weather-mediated natural selection on arrival time in cliff swallows (Petrochelidon pyrrhonota) C. R. BrownMary Bomberger Brown Original Paper Pages: 339 - 345
The effect of queen-worker conflict on caste determination in the bumblebee Bombus terrestris J. CnaaniG. E. RobinsonA. Hefetz Original Article Pages: 346 - 352
Cleaner-client interactions on a Caribbean reef: influence of correlates of parasitism C. ArnalI. M. CôtéS. Morand Original Paper Pages: 353 - 358
Genetic evidence for mixed parentage in nests of the emu (Dromaius novaehollandiae) Emma L. TaylorDominique BlacheGraeme B. Martin Original Article Pages: 359 - 364
Communal burrowing in the hystricognath rodent, Octodon degus: a benefit of sociality? L. A. EbenspergerFrancisco Bozinovic Original Article Pages: 365 - 369