Male reproductive investment relative to age and flight behaviour in the monandrous butterfly Pararge aegeria Lesley Vande VeldePauline SilvestreHans Van Dyck Original Paper 09 November 2011 Pages: 347 - 359
Dawn chorusing in guereza colobus monkeys Anne Marijke SchelKlaus Zuberbühler Original Paper 17 November 2011 Pages: 361 - 373
A curvilinear effect of height on reproductive success in human males Gert StulpThomas V. PolletAbraham P. Buunk Original Paper Open access 15 November 2011 Pages: 375 - 384
Influence of fuel load and weather on timing of nocturnal spring migratory departures in European robins, Erithacus rubecula Victor N. Bulyuk Original Paper 15 November 2011 Pages: 385 - 395
Persistent bimodal activity patterns in wild and captive black-tailed godwit Limosa limosa under different environmental conditions Francisco Santiago-QuesadaJosé A. MaseroJuan M. Sánchez-Guzmán Original Paper 12 November 2011 Pages: 397 - 405
Sex differences in the repeatability of boldness over metamorphosis Ann V. HedrickRaine Kortet Original Paper 11 November 2011 Pages: 407 - 412
Women’s self-perceived health and attractiveness predict their male vocal masculinity preferences in different directions across short- and long-term relationship contexts D. R. FeinbergL. M. DeBruineC. C. Tigue Original Paper 30 November 2011 Pages: 413 - 418
Delayed maturation of multiple signals in a migratory songbird Ryan R. GermainMatthew W. ReudinkLaurene M. Ratcliffe Original Paper 12 November 2011 Pages: 419 - 431
Call timing is determined by response call type, but not by stimulus properties, in the treefrog Dendropsophus ebraccatus Michael S. Reichert Original Paper 15 November 2011 Pages: 433 - 444
Honeybee recruitment to scented food sources: correlations between in-hive social interactions and foraging decisions M. S. BalbuenaJ. MolinasW. M. Farina Original Paper 15 November 2011 Pages: 445 - 452
Cost-free vigilance during feeding in folivorous primates? Examining the effect of predation risk, scramble competition, and infanticide threat on vigilance in ursine colobus monkeys (Colobus vellerosus) Julie A. TeichroebPascale Sicotte Original Paper 24 November 2011 Pages: 453 - 466
Effects of the social environment on the survival and fungal resistance of ant brood Jessica PurcellTimothée BrütschMichel Chapuisat Original Paper 25 November 2011 Pages: 467 - 474
How the social parasitic bumblebee Bombus bohemicus sneaks into power of reproduction Kirsten KreuterElfi BunkManfred Ayasse Original Paper 23 November 2011 Pages: 475 - 486
Colour-independent shape recognition of cryptic predators by bumblebees T. C. IngsM.-Y. WangL. Chittka Original Paper 06 December 2011 Pages: 487 - 496
Linking male qualities to multiple display traits: an example in a fish with exclusive male care Matteo PizzolonLisa LocatelloMaria B. Rasotto Original Paper 23 December 2011 Pages: 497 - 504
Children of divorce: effects of adult replacements on previous offspring in Argentinean owl monkeys Maren HuckEduardo Fernandez-Duque Original Paper 14 December 2011 Pages: 505 - 517