Genetic and behavioral conflict over male production between workers and queens in the stingless bee Paratrigona subnuda Eva TóthDavid C. QuellerJoan E. Strassmann Original Article Pages: 1 - 8
Acoustic interactions among male gray treefrogs, Hyla versicolor, in a chorus setting Joshua J. SchwartzBryant W. Buchanan H. Gerhardt Original Article Pages: 9 - 19
Dominant male red junglefowl (Gallus gallus) test the dominance status of other males Timothy H. ParkerDavid J. Ligon Original Article Pages: 20 - 24
Sex-ratio variation in Soay sheep Jan LindströmTim CoulsonTim Clutton-Brock Original Article Pages: 25 - 30
Male sperm whale (Physeter macrocephalus) acoustics in a high-latitude habitat: implications for echolocation and communication P. Madsen M. Wahlberg B. Møhl Original Article Pages: 31 - 41
Duplex auditory distance assessment in a small passerine bird (Pipilo erythrophthalmus) Brian S. Nelson Original Article Pages: 42 - 50
The spider and fly revisited: ploy–counterploy behavior in a unique predator–prey system Craig S. HieberStimson R. WilcoxGeorge W. Uetz Original Article Pages: 51 - 60