A model for within-group coalitionary aggression among males Carel P. van SchaikSagar A. PanditErin R. Vogel Original Article 18 September 2004 Pages: 101 - 109
Mate guarding, copulation strategies and paternity in the sex-role reversed, socially polyandrous red-necked phalarope Phalaropus lobatus Douglas SchamelDiane M. TracyDavid F. Westneat Original Article 11 August 2004 Pages: 110 - 118
Why breed communally? Factors affecting fecundity in a communal breeding mammal: the banded mongoose (Mungos mungo) Jason S. GilchristEmily OtaliFrancis Mwanguhya Original Article 23 September 2004 Pages: 119 - 131
The outcome of in-vitro contests between larvae of the endoparasitoid Venturia canescens depends on both their relative and absolute ages Harry L. S. RobertsOliver TrueOtto Schmidt Original Article 09 September 2004 Pages: 132 - 138
On the social structure of offspring rearing in the burrower bug, Sehirus cinctus (Hemiptera: Cydnidae) Aneil F. AgrawalJeremy M. BrownEdmund D. Brodie III Original Article 14 September 2004 Pages: 139 - 148
Sperm competition and the level of polyandry in a bushcricket with large nuptial gifts Leon R. HockhamJefferson A. GravesMichael G. Ritchie Original Article 18 September 2004 Pages: 149 - 154
Individual variation and prior experience affect the discrimination of a brood-parasite by its subsocial beetle host O. Anne E. RasaDik Heg Original Article 09 September 2004 Pages: 155 - 163
Genetic analysis of parentage within experimental populations of a male dimorphic beetle, Onthophagus taurus, using amplified fragment length polymorphism L. W. SimmonsM. BeveridgeS. Krauss Original Article 11 September 2004 Pages: 164 - 173
Arrived in the light: diel and seasonal activity patterns in wild Verreaux’s sifakas (Propithecus v. verreauxi; Primates: Indriidae) Hans G. ErkertPeter M. Kappeler Original Article 29 September 2004 Pages: 174 - 186
Chick-a-dee call syntax, social context, and season affect vocal responses of Carolina chickadees (Poecile carolinensis) Barbara A. ClucasTodd M. FreebergJeffrey R. Lucas Original Article 17 September 2004 Pages: 187 - 196