1. Seasonal variation in the degree of heterospecific association of two syntopic hyraxes (Heterohyrax brucei and Procavia capensis) exhibiting synchronous parturition

   • Ronald E. Barry
   • Peter J. Mundy

   Original Article Pages: 177 - 181

2. Mixed-species shoaling in fish: the sensory mechanisms and costs of shoal choice

   • Ashley J. Ward
   • Stephen Axford
   • Jens Krause

   Original Article Pages: 182 - 187

3. Phylogenetic analyses of sexual selection and sexual size dimorphism in pinnipeds

   • Patrik Lindenfors
   • Birgitta S. Tullberg
   • Martin Biuw

   Original Article Pages: 188 - 193

4. The role of information in mate-choice copying in female sailfin mollies (Poecilia latipinna)

   • Klaudia Witte
   • Bianka Noltemeier

   Original Article Pages: 194 - 202

5. Mean colony relatedness is a poor predictor of colony structure and female philopatry in the communally breeding Bechstein's bat (Myotis bechsteinii)

   • Gerald Kerth
   • Kamran Safi
   • Barbara König

   Original Article Pages: 203 - 210

6. The presence of eggs in the nest and female choice in common freshwater gobies (Rhinogobius brunneus)

   • Ho Suk
   • Jae C. Choe

   Original Article Pages: 211 - 215

7. Responses to playback of whistle songs and normal songs in male nightingales: effects of song category, whistle pitch, and distance

   • Marc Naguib
   • Roger Mundry
   • Dietmar Todt

   Original Article Pages: 216 - 223

8. Male reproductive tactics in the mallard, Anas platyrhynchos: social and hormonal mechanisms

   • Ellen S. Davis

   Original Article Pages: 224 - 231

9. Increasing foraging group size increases scrounger use and reduces searching efficiency in nutmeg mannikins (Lonchura punctulata)

   • Isabelle Coolen

   Original Article Pages: 232 - 238

10. The influence of nectar secretion rates on the responses of bumblebees (Bombus spp.) to previously visited flowers

    • Jane C. Stout
    • Dave Goulson

    Original Article Pages: 239 - 246

11. Bi-directional sex change: testing the growth-rate advantage model

    • Philip L. Munday

    Original Article Pages: 247 - 254

12. The role of companionship in the dispersal of white rhinoceroses (Ceratotherium simum)

    • Adrian M. Shrader
    • Norman Owen-Smith

    Original Article Pages: 255 - 261

13. Mixed-directionality of killer whale stereotyped calls: a direction of movement cue?

    • Patrick J. Miller

    Original Article Pages: 262 - 270