Bisexually bonded ranging in chimpanzees (Pan troglodytes verus) Julia LehmannChristophe Boesch Original Article 14 January 2005 Pages: 525 - 535
Differing rates of extra-group paternity between two populations of the Australian magpie (Gymnorhina tibicen) Kate L. DurrantJane M. Hughes Original Article 13 January 2005 Pages: 536 - 545
Breeding site choice fails to explain interannual associations of female grey seals P. P. PomeroyP. R. RedmanS. D. Twiss Original Article 13 January 2005 Pages: 546 - 556
No evidence for acoustic mate-guarding in duetting buff-breasted wrens (Thryothorus leucotis) Sharon A. GillMaarten J. VonhofJames S. Quinn Original Article 13 January 2005 Pages: 557 - 565
Insights into the costs of complex maternal care behavior in the burrower bug (Sehirus cinctus) Aneil F. AgrawalNicole CombsEdmund D. Brodie III Original Article 13 January 2005 Pages: 566 - 574
Social recognition in sticklebacks: the role of direct experience and habitat cues Ashley J. W. WardRobert I. HolbrookPaul J. B. Hart Original Article 13 January 2005 Pages: 575 - 583
Female egg investment in relation to male sexual traits and the potential for transgenerational effects in sexual selection Tobias UllerJohan EklöfSofia Andersson Original Article 13 January 2005 Pages: 584 - 590
All at sea: aquatic life modifies mate-recognition modalities in sea snakes (Emydocephalus annulatus, Hydrophiidae) R. Shine Original Article 13 January 2005 Pages: 591 - 598
Analysis of bumblebee visitation sequences within single bouts: implication of the overstrike effect on short-term memory Hiroshi S. Ishii Original Article 13 January 2005 Pages: 599 - 610
Reputation is valuable within and outside one’s own social group Dirk SemmannHans-Jürgen KrambeckManfred Milinski Original Article 12 January 2005 Pages: 611 - 616
Does interaction between bumblebees (Bombus ignitus) reduce their foraging area?: bee-removal experiments in a net cage Takashi T. MakinoSatoki Sakai Original Article 21 December 2004 Pages: 617 - 622
Individual recognition of neighbors by song in a suboscine bird, the alder flycatcher Empidonax alnorum Scott F. LovellM. Ross Lein Original Article 23 December 2004 Pages: 623 - 630
The effect of helpers on artificially increased brood size in sociable weavers (Philetairus socius) Rita CovasMorné A. du Plessis Original Article 23 December 2004 Pages: 631 - 636