Orientation and navigation in bats: known unknowns or unknown unknowns? Richard A. Holland Review 29 November 2006 Pages: 653 - 660
Estrus cycle asynchrony in wild female chimpanzees, Pan troglodytes schweinfurthii Akiko Matsumoto-OdaMiya HamaiYukio Takahata Original Article 10 January 2007 Pages: 661 - 668
Species-specificity and individual variation in the song of male Nathusius’ pipistrelles (Pipistrellus nathusii) J. M. RussP. A. Racey Original Article 21 November 2006 Pages: 669 - 677
Can environmental heterogeneity explain individual foraging variation in wild bottlenose dolphins (Tursiops sp.)? Brooke L. SargeantAaron J. WirsingJanet Mann Original Article 05 December 2006 Pages: 679 - 688
Environmental and genetic influences on mating strategies along a replicated food availability gradient in guppies (Poecilia reticulata) Gita R. KolluruGregory F. GretherHeidy Contreras Original Article 13 December 2006 Pages: 689 - 701
Sex, food and conflicts: nutrition dependent nuptial feeding and pre-mating struggles in scorpionflies Leif Engqvist Original Article 29 November 2006 Pages: 703 - 710
Effects of female mating status on copulation behaviour and sperm expenditure in the freshwater crayfish Austropotamobius italicus Paolo GaleottiFabio PupinMauro Fasola Original Article 18 November 2006 Pages: 711 - 718
Female guppies shorten brood retention in response to predator cues Jonathan P. EvansClelia GaspariniAndrea Pilastro Original Article 30 November 2006 Pages: 719 - 727
Delayed dispersal as a potential route to cooperative breeding in ambrosia beetles Katharina PeerMichael Taborsky Original Article 19 December 2006 Pages: 729 - 739
Carotenoid-based colouration and ultraviolet reflectance of the sexual ornaments of grouse F. MougeotJ. Martínez-PadillaG. R. Bortolotti Original Article 05 December 2006 Pages: 741 - 751
Rank-related partner choice in the fission–fusion society of the spotted hyena (Crocuta crocuta) Jennifer E. SmithSandra K. MemenisKay E. Holekamp Original Article 29 November 2006 Pages: 753 - 765
Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) Pierrick BlanchardNicolas HanuiseHenri Weimerskirch Original Article 08 December 2006 Pages: 767 - 773
Context-dependent genetic benefits of extra-pair mate choice in a socially monogamous passerine Erin L. O’BrienRussell D. Dawson Original Article 05 December 2006 Pages: 775 - 782
Experimental analysis of worker division of labor in bumblebee nest thermoregulation (Bombus huntii, Hymenoptera: Apidae) Kathryn E. GardnerRobin L. FosterSean O’Donnell Original Article 13 December 2006 Pages: 783 - 792
Is sex-specific mass gain in Cory’s shearwaters Calonectris diomedea related to begging and steroid hormone expression? Petra QuillfeldtInga TrägerJuan F. Masello Original Article 14 December 2006 Pages: 793 - 800
Tradition without social learning: scent-mark-based communal roost formation in a Neotropical harvestman (Prionostemma sp.) Zoe R. DonaldsonGregory F. Grether Original Article 08 December 2006 Pages: 801 - 809
Population differentiation in female sex pheromone and male preferences in a solitary bee Nicolas J. VereeckenJim MantFlorian P. Schiestl Original Article 19 December 2006 Pages: 811 - 821
Males are attracted by their own courtship signals Pablo D. RibeiroJohn H. ChristyTae Won Kim Erratum 10 January 2007 Pages: 823 - 823