Escalating fights for rank-order position between male swordtails (Xiphophorus helleri): Effects of prior rank-order experience and information transfer D. FranckA. Ribowski OriginalPaper Pages: 133 - 143
Early maturing Kipsigis women have higher reproductive success than late maturing women and cost more to marry Monique Borgerhoff Mulder OriginalPaper Pages: 145 - 153
Synergism between sib-rearing and sex ratio in Hymenoptera S. A. FrankB. J. Crespi OriginalPaper Pages: 155 - 162
Pigeon homing: Olfactory orientation—a paradox Roswitha WiltschkoW. Wiltschko OriginalPaper Pages: 163 - 173
Snake-directed mobbing by the Formosan squirrel Callosciurus erythraeus thaiwanensis N. Tamura OriginalPaper Pages: 175 - 180
Social foraging in honey bees: how nectar foragers assess their colony's nutritional status Thomas D. Seeley OriginalPaper Pages: 181 - 199
