Sex steroid correlates of female-specific colouration, behaviour and reproductive state in Lake Eyre dragon lizards, Ctenophorus maculosus Tim S. JessopRita ChanDevi Stuart-Fox Original Paper 11 April 2009 Pages: 619 - 630
Photoperiodic regulation of satiety mediating neuropeptides in the brainstem of the seasonal Siberian hamster (Phodopus sungorus) Michael HelwigZoë A. ArcherMartin Klingenspor Original Paper 05 April 2009 Pages: 631 - 642
Aerial visual acuity in harbor seals (Phoca vitulina) as a function of luminance Frederike Diana HankeGuido Dehnhardt Original Paper 10 April 2009 Pages: 643 - 650
Multiple mechanisms generate the resting activity of filiform sensilla in the firebug (Pyrrhocoris apterus L.; Heteroptera) Aleš ŠkorjancGregor ZupančičKazimir Drašlar Original Paper 21 April 2009 Pages: 651 - 661
Evidence for a perception of prosodic cues in bat communication: contact call classification by Megaderma lyra Simone JanßenSabine Schmidt Original Paper 23 April 2009 Pages: 663 - 672
Pupal developmental temperature and behavioral specialization of honeybee workers (Apis mellifera L.) Matthias A. BecherHolger ScharpenbergRobin F. A. Moritz Original Paper 24 April 2009 Pages: 673 - 679
Which portion of the natural panorama is used for view-based navigation in the Australian desert ant? Paul GrahamKen Cheng Original Paper 29 April 2009 Pages: 681 - 689
Identification, release and olfactory detection of bile salts in the intestinal fluid of the Senegalese sole (Solea senegalensis) Zélia VelezPeter C. HubbardAdelino V. M. Canário Original Paper 05 May 2009 Pages: 691 - 698
Structural and functional regeneration after spinal cord injury in the weakly electric teleost fish, Apteronotus leptorhynchus Ruxandra F. SîrbulescuIulian IlieşGünther K. H. Zupanc Original Paper 10 May 2009 Pages: 699 - 714