1. The Status of Biology and the Meaning of Biodiversity

   • Franz M. Wuketits

   Natur & Wissenschaften Pages: 473 - 479

2. New Findings Concerning Vertebrate Porin

   • Friedrich P. Thinnes
   • Susanne Reymann

   Natur & Wissenschaft Pages: 480 - 498

3. Cannibalism of subordinates’ eggs in the monogynous queenless ant Dinoponera quadriceps

   • Thibaud Monnin
   • Christian Peeters

   Kurze Originalmitteilung Pages: 499 - 502

4. Molecular and Morphological Data Suggest a Single Origin of the Polydnaviruses among Braconid Wasps

   • James B. Whitfield

   Kurze Originalmitteilung Pages: 502 - 507

5. Poison Gland of Queen Fire Ants (Solenopsis invicta) is the Source of a Primer Pheromone

   • Edward L. Vargo

   Kurze Originalmitteilung Pages: 507 - 510

6. Spatial distribution of excitation within the excitatory receptive field of ipsilateral visuotectal (type I1) units of frogs

   • Christophe Beauquin
   • Frédéric Gaillard

   KURZE ORIGINALMITTEILUNG Pages: 511 - 513

7. Computable Scaling Factor Contracting or Dilatating a Calibrated Walking Distance as a Function of Relative Motion

   • Walter Massing

   Erratum Pages: 514 - 514