1. Evolution of electric communication channels of mormyrids

   • Carl D. Hopkins

   OriginalPaper Pages: 1 - 13

2. Homeward orientation mechanisms in three species of turtles (Trionyx spinifer, Chrysemys picta, and Terrapene carolina)

   • Christopher T. DeRosa
   • Douglas H. Taylor

   OriginalPaper Pages: 15 - 23

3. The effect of cannibalism on the demography and activity of a natural population of desert scorpions

   • Gary A. Polis

   OriginalPaper Pages: 25 - 35

4. Dung fly struggles: A test of the war of attrition

   • G. A. Parker
   • E. A. Thompson

   OriginalPaper Pages: 37 - 44

5. Permanence of Euscorpius carpathicus (L.) larvae on the mother's back (Scorpiones, Chatidae)

   • M. Vannini
   • A. Ugolini

   OriginalPaper Pages: 45 - 47

6. Dialects in the alarm calls of prairie dogs

   • C. N. Slobodchikoff
   • R. Coast

   OriginalPaper Pages: 49 - 53

7. Sex attractant of an arctiid moth (Utetheisa ornatrix): A pulsed chemical signal

   • William E. Conner
   • Thomas Eisner
   • Jerrold Meinwald

   OriginalPaper Pages: 55 - 63

8. Space use and social structure in meadow voles, Microtus pennsylvanicus

   • Dale M. Madison

   OriginalPaper Pages: 65 - 71

9. Circannual changes in migratory orientation of the garden warbler, Sylvia borin

   • Eberhard Gwinner
   • Wolfgang Wiltschko

   OriginalPaper Pages: 73 - 78

10. Behaviour of bats during a lunar eclipse

    • K. Usman
    • J. Habersetzer
    • K. Paramanandam

    OriginalPaper Pages: 79 - 81