Post-hatching syrinx development in the zebra finch: an analysis of androgen receptor, aromatase, estrogen receptor α and estrogen receptor β mRNAs Sean L. VeneyJuli Wade Original Paper 30 November 2004 Pages: 97 - 104
Intensity and the ratios of compounds in the scent of snapdragon flowers affect scent discrimination by honeybees (Apis mellifera) Geraldine A. WrightAmy LutmerdingBrian H. Smith Original Paper 16 November 2004 Pages: 105 - 114
Infrastructure in the electric sense: admittance data from shark hydrogels Brandon R. BrownMary E. HughesClementina Russo Original Paper 20 November 2004 Pages: 115 - 123
Photoreceptors and photopigments in a subterranean rodent, the pocket gopher (Thomomys bottae) Gary A. WilliamsJack B. CalderoneGerald H. Jacobs Original Paper 17 November 2004 Pages: 125 - 134
Afterhyperpolarization–firing rate relation of turtle spinal neurons E. K. StaufferD. G. StuartR. M. Reinking Original Paper 10 December 2004 Pages: 135 - 146
Behavioral and chemosensory responses to a host recognition cue by larvae of Pieris rapae Carol I. MilesMarta L. del CampoJ. Alan A. Renwick Original Paper 03 December 2004 Pages: 147 - 155
The action of spike frequency adaptation in the postural motoneurons of hermit crab abdomen during the first phase of reflex activation Jacob L. KransWilliam D. Chapple Original Paper 02 December 2004 Pages: 157 - 174
Mechanisms for synchrony and alternation in song interactions of the bushcricket Mecopoda elongata (Tettigoniidae: Orthoptera) Manfred HartbauerSilvia KratzerHeiner Römer Original Paper 22 December 2004 Pages: 175 - 188
The antennal benzoic acid receptor cell of the female silk moth Bombyx mori L.: structure–activity relationship studies with halogen substitutes María Gabriela de Brito SanchezKarl-Ernst Kaissling Original Paper 22 December 2004 Pages: 189 - 196