1. Birth sex ratios in toque macaques and other mammals: integrating the effects of maternal condition and competition

   • Wolfgang P. J. Dittus

   REVIEW Pages: 149 - 160

2. Sperm allocation in an uncertain world

   • Alison Galvani
   • Rufus Johnstone

   ORIGINAL ARTICLE Pages: 161 - 168

3. Testes mass in megachiropteran bats varies in accordance with sperm competition theory

   • D. J. Hosken

   ORIGINAL ARTICLE Pages: 169 - 177

4. Sexual selection in the zebra finch Taeniopygia guttata : condition, sex traits and immune capacity

   • T. R. Birkhead
   • F. Fletcher
   • E. J. Pellatt

   ORIGINAL ARTICLE Pages: 179 - 191

5. Brood pheromone stimulates pollen foraging in honey bees (Apis mellifera)

   • Tanya Pankiw
   • Robert E. Page Jr
   • M. Kim Fondrk

   ORIGINAL ARTICLE Pages: 193 - 198

6. Anal gland secretion codes for family membership in the beaver

   • Lixing Sun
   • Dietland Müller-Schwarze

   ORIGINAL ARTICLE Pages: 199 - 208

7. Habituation in the green frog, Rana clamitans

   • Patrick C. Owen
   • Stephen A. Perrill

   ORIGINAL ARTICLE Pages: 209 - 213