653-660
Review
Orientation and navigation in bats: known unknowns or unknown unknowns?
Richard A. Holland
661-668
Original Article
Estrus cycle asynchrony in wild female chimpanzees, Pan troglodytes schweinfurthii
Akiko Matsumoto-Oda, Miya Hamai, Hitosige Hayaki, Kazuhiko Hosaka and Kevin D. Hunt, et al.
669-677
Original Article
Species-specificity and individual variation in the song of male Nathusius’ pipistrelles (Pipistrellus nathusii)
J. M. Russ and P. A. Racey
679-688
Original Article
Can environmental heterogeneity explain individual foraging variation in wild bottlenose dolphins (Tursiops sp.)?
Brooke L. Sargeant, Aaron J. Wirsing, Michael R. Heithaus and Janet Mann
689-701
Original Article
Environmental and genetic influences on mating strategies along a replicated food availability gradient in guppies (Poecilia reticulata)
Gita R. Kolluru, Gregory F. Grether and Heidy Contreras
703-710
Original Article
Sex, food and conflicts: nutrition dependent nuptial feeding and pre-mating struggles in scorpionflies
Leif Engqvist
711-718
Original Article
Effects of female mating status on copulation behaviour and sperm expenditure in the freshwater crayfish Austropotamobius italicus
Paolo Galeotti, Fabio Pupin, Diego Rubolini, Roberto Sacchi and Pietro A. Nardi, et al.
719-727
Original Article
Female guppies shorten brood retention in response to predator cues
Jonathan P. Evans, Clelia Gasparini and Andrea Pilastro
729-739
Original Article
Delayed dispersal as a potential route to cooperative breeding in ambrosia beetles
Katharina Peer and Michael Taborsky
741-751
Original Article
Carotenoid-based colouration and ultraviolet reflectance of the sexual ornaments of grouse
F. Mougeot, J. Martínez-Padilla, L. Pérez-Rodríguez and G. R. Bortolotti
753-765
Original Article
Rank-related partner choice in the fission–fusion society of the spotted hyena (Crocuta crocuta)
Jennifer E. Smith, Sandra K. Memenis and Kay E. Holekamp
767-773
Original Article
Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans)
Pierrick Blanchard, Nicolas Hanuise, Stéphanie Dano and Henri Weimerskirch
775-782
Original Article
Context-dependent genetic benefits of extra-pair mate choice in a socially monogamous passerine
Erin L. O’Brien and Russell D. Dawson
783-792
Original Article
Experimental analysis of worker division of labor in bumblebee nest thermoregulation (Bombus huntii, Hymenoptera: Apidae)
Kathryn E. Gardner, Robin L. Foster and Sean O’Donnell
793-800
Original Article
Is sex-specific mass gain in Cory’s shearwaters Calonectris diomedea related to begging and steroid hormone expression?
Petra Quillfeldt, Inga Träger, Kate Griffiths, Katherine L. Buchanan and Juan F. Masello
801-809
Original Article
Tradition without social learning: scent-mark-based communal roost formation in a Neotropical harvestman (Prionostemma sp.)
Zoe R. Donaldson and Gregory F. Grether
811-821
Original Article
Population differentiation in female sex pheromone and male preferences in a solitary bee
Nicolas J. Vereecken, Jim Mant and Florian P. Schiestl
823
Erratum
Males are attracted by their own courtship signals
Pablo D. Ribeiro, John H. Christy, Rebecca J. Rissanen and Tae Won Kim