1. Flower Constancy, Insect Psychology, and Plant Evolution

   • Lars Chittka
   • James D. Thomson
   • Nickolas M. Waser

   REVIEW ARTICLES Pages: 361 - 377

2. Homology and Convergence in Vertebrate and Invertebrate Nervous Systems

   • David Sandeman

   REVIEW ARTICLES Pages: 378 - 387

3. Social Rank, Stress, Fitness, and Life Expectancy in Wild Rabbits

   • Dietrich von Holst
   • Hans Hutzelmeyer
   • Ronald Schönheiter

   SHORT COMMUNICATIONS Pages: 388 - 393

4. Methyl farnesoate stimulates testicular growth in the freshwater crab Oziotelphusa senex senex fabricius

   • Y. Kalavathy
   • P. Mamatha
   • P. Sreenivasula Reddy

   SHORT COMMUNICATIONS Pages: 394 - 395

5. Sex or Food? Appetetive Learning of Sex Odors in a Male Moth

   • Elke Hartlieb
   • Bill S. Hansson
   • Peter Anderson

   SHORT COMMUNICATIONS Pages: 396 - 399

6. Rodlet Cells in the Head and Trunk Kidney of the Domestic Carp (Cyprinus carpio): Enigmatic Gland Cells or Coccidian Parasites?

   • Lev Fishelson
   • Klaus Becker

   SHORT COMMUNICATIONS Pages: 400 - 403

7. The Mysterious Mauritian Red Nectar: A Selective Toxicant?

   • Herbert S. Rosenkranz
   • Gilles Klopman

   SHORT COMMUNICATIONS Pages: 404 - 405

8. BOOK REVIEWS

   Pages: 406 - 407

9. NATURWISSENSCHAFTEN AKTUELL

   • Zusammengestellt von G. H. Altenmüller (Königswinter)

   Pages: 408 - 410