Maternal investment in rhesus macaques (Macaca mulatta): reproductive costs and consequences of raising sons F. B. BercovitchAnja WiddigPeter Nürnberg Original Article Pages: 1 - 11
Reproductive success of monogamous and polygynous pied flycatchers (Ficedula hypoleuca) T. LubjuhnWolfgang WinkelJörg Brün Original Article Pages: 12 - 17
Group histories and offspring sex ratios in ringtailed lemurs (Lemur catta) C. L. NunnMichael E. Pereira Original Article Pages: 18 - 28
Adaptive host choice and avoidance of superparasitism in the spawning decisions of bitterling (Rhodeus sericeus) C. SmithJohn D. ReynoldsPavel Jurajda Original Article Pages: 29 - 35
Color choices by bumble bees (Bombus terrestris): innate preferences and generalization after learning A. Gumbert Original Article Pages: 36 - 43
Male greenfinches (Carduelis chloris) with brighter ornaments have higher virus infection clearance rate K. LindströmJan Lundström Original Article Pages: 44 - 51
Parental investment, adult sex ratios, and sexual selection in a socially monogamous seabird Bernie R. TershyDonald A. Croll Original Article Pages: 52 - 60
Spatial and behavioral interactions between a native and introduced salamander species L. J. RisslerAmy M. BarberA. M. Baker Original Article Pages: 61 - 68
Evolution of male mating behavior: male spadefoot toads preferentially associate with conspecific males K. S. PfennigKatrina RapaRegan McNatt Original Article Pages: 69 - 74
Weight comparisons and litter size manipulation in Columbian ground squirrels (Spermophilus columbianus) show evidence of costs of reproduction P. Neuhaus Original Article Pages: 75 - 83
Molecular genetic and behavioral analysis of social organization in the Asian elephant (Elephas maximus) P. FernandoRussell Lande Original Article Pages: 84 - 91