1. Anti-predator behavior of group-living Malagasy primates: mixed evidence for a referential alarm call system

   • Claudia Fichtel
   • Peter M. Kappeler

   Original Article Pages: 262 - 275

2. Biased sperm use by polyandrous queens of the ant Proformica longiseta

   • Ignacio Fernández-Escudero
   • Pekka Pamilo
   • Perttu Seppä

   Original Article Pages: 207 - 213

3. MHC diversity of endemic Malagasy rodents in relation to geographic range and social system

   • Simone Sommer
   • Dorothea Schwab
   • Jörg U. Ganzhorn

   Original Article Pages: 214 - 221

4. Brood defense and filial cannibalism in the spottail darter (Etheostoma squamiceps): the effects of parental status and prior experience

   • James H. Bandoli

   Original Article Pages: 222 - 226

5. Anti-predator response of red-backed salamanders (Plethodon cinereus) to chemical cues from garter snakes (Thamnophis sirtalis): laboratory and field experiments

   • Aaron M. Sullivan
   • John C. Maerz
   • Dale M. Madison

   Original Article Pages: 227 - 233

6. Influence of age polyethism on longevity of workers in social insects

   • Adam Tofilski

   Original Article Pages: 234 - 237

7. Repeatable female preferences, mating order and mating success in the poeciliid fish, Heterandria formosa

   • Andrea S. Aspbury
   • Alexandra L. Basolo

   Original Article Pages: 238 - 244

8. Social rank, fecundity and lifetime reproductive success in wild European rabbits (Oryctolagus cuniculus)

   • Dietrich von Holst
   • Hans Hutzelmeyer
   • Hannelore Schrutka

   Original Article Pages: 245 - 254

9. Males matter: the occurrence and consequences of male incubation in starlings (Sturnus vulgaris)

   • Jane M. Reid
   • Pat Monaghan
   • Graeme D. Ruxton

   Original Article Pages: 255 - 261

10. Parent-offspring resemblance in degree of sociality in a passerine bird

    • Anders Møller

    Original Article Pages: 276 - 281

11. Residence duration influences the outcome of territorial conflicts in brown trout (Salmo trutta)

    • Jörgen I. Johnsson
    • Annica Forser

    Original Article Pages: 282 - 286

12. Experimental conversion of colony social organization by manipulation of worker genotype composition in fire ants (Solenopsis invicta)

    • K. Ross
    • L. Keller

    Original Article Pages: 287 - 295

13. Conflict of interest between a nematode and a trematode in an amphipod host: test of the "sabotage" hypothesis

    • Frédéric Thomas
    • Jérôme Fauchier
    • Kevin D. Lafferty

    Original Article Pages: 296 - 301

14. Is the bat os penis sexually selected?

    • D. Hosken
    • K. Jones
    • A. Dixson

    Erratum Pages: 302 - 307