Predation risk assessment by green frog (Rana clamitans) tadpoles through chemical cues produced by multiple prey Michael E. Fraker Original Paper 10 July 2009 Pages: 1397 - 1402
Body size preferences in the pot-bellied seahorse Hippocampus abdominalis: choosy males and indiscriminate females Beat MattleAnthony B. Wilson Original Paper Open access 26 June 2009 Pages: 1403 - 1410
Behavioral evolution in the major worker subcaste of twig-nesting Pheidole (Hymenoptera: Formicidae): does morphological specialization influence task plasticity? Amy L. MertlJames F. A. Traniello Original Paper 12 June 2009 Pages: 1411 - 1426
Indirect fitness benefits are not related to male dominance in a killifish Matej PolačikMartin Reichard Original Paper 10 June 2009 Pages: 1427 - 1435
Influences on dusky dolphin (Lagenorhynchus obscurus) fission-fusion dynamics in Admiralty Bay, New Zealand Heidi C. Pearson Original Paper 10 July 2009 Pages: 1437 - 1446
Food site residence time and female competitive relationships in wild gray-cheeked mangabeys (Lophocebus albigena) Rebecca L. ChancellorLynne A. Isbell Original Paper Open access 26 June 2009 Pages: 1447 - 1458
Travel duration, energetic expenditure, and patch exploitation in the parasitic wasp Venturia canescens Yin-Quan LiuCarlos BernsteinAndra Thiel Original Paper 16 June 2009 Pages: 1459 - 1469
Paternity alone does not predict long-term investment in juveniles by male baboons Liza R. MoscoviceMarlies HeesenDorothy L. Cheney Original Paper Open access 03 June 2009 Pages: 1471 - 1482
Does the risk of encountering lions influence African herbivore behaviour at waterholes? Marion ValeixHervé FritzDavid W. Macdonald Original Pper 31 March 2009 Pages: 1483 - 1494
Behavioural trait assortment in a social network: patterns and implications Darren P. CroftJens KrauseRichard James Original Paper 16 June 2009 Pages: 1495 - 1503
Seminal fluid protein depletion and replenishment in the fruit fly, Drosophila melanogaster: an ELISA-based method for tracking individual ejaculates Laura K. SirotNorene A. BuehnerMariana F. Wolfner Original Paper 19 June 2009 Pages: 1505 - 1513
Variation along the shy–bold continuum in extremophile fishes (Poecilia mexicana, Poecilia sulphuraria) Rüdiger RieschVirginia DuweMartin Plath Original Paper 03 June 2009 Pages: 1515 - 1526
Maternal characteristics and the production and recruitment of sons in the eastern kingbird (Tyrannus tyrannus) Amy C. DolanMichael T. MurphyDebbie Duffield Original Paper 30 May 2009 Pages: 1527 - 1537
Digit length ratio (2D/4D): comparing measurements from X-rays and photographs in field voles (Microtus agrestis) Thomas LilleyToni LaaksonenSamuli Helle Methods 29 May 2009 Pages: 1539 - 1547