The circadian clock in the brain: a structural and functional comparison between mammals and insects Charlotte Helfrich-Förster Review 20 May 2004 Pages: 601 - 613
Synaptic interactions between nonspiking local interneurones in the terminal abdominal ganglion of the crayfish H. NambaT. Nagayama Original Paper 06 April 2004 Pages: 615 - 622
Three digestive movements in Hydra regulated by the diffuse nerve net in the body column Hiroshi ShimizuOsamu KoizumiToshitaka Fujisawa Original Paper 28 May 2004 Pages: 623 - 630
Dim nocturnal illumination alters coupling of circadian pacemakers in Siberian hamsters, Phodopus sungorus M. R. GormanJ. A. Elliott Original Paper 27 April 2004 Pages: 631 - 639
Brain glucose and insulin: effects on food intake and brain biogenic amines of rainbow trout J. L. SoengasM. Aldegunde Original Paper 08 May 2004 Pages: 641 - 649
Shape discrimination by wasps (Paravespula germanica) at the food source: generalization among various types of contrast Miriam LehrerRaymond Campan Original Paper 15 May 2004 Pages: 651 - 663
Ultrasonic singing by the blue-throated hummingbird: a comparison between production and perception Carolyn L. PytteMillicent S. FickenAndrew Moiseff Original Paper 26 May 2004 Pages: 665 - 673
Annual variations of adrenal gland hormones in the lizard Podarcis sicula M. De FalcoR. SciarrilloL. Varano Original Paper 29 May 2004 Pages: 675 - 681