Sperm competition affects sex allocation but not sperm morphology in a flatworm
Seasonal polyphenism in life history traits
Variation in male courtship costs in butterflies
An adaptive annual rhythm in the sex of first pigeon eggs
Inbreeding avoidance in a poeciliid fish ( Heterandria formosa )
Terpenoids tame aggressors
Nest desertion is not predicted by cuckoldry in the Eurasian penduline tit
Female choice of a non-bodily ornament
Simulation of information propagation in real-life primate networks
Bill color, not badge size, indicates testosterone-related information in house sparrows
Sperm quantity and quality effects on fertilization success in a highly promiscuous passerine, the tree swallow Tachycineta bicolor
Risk trading in mating behavior
Refuge sharing network predicts ectoparasite load in a lizard
Good practice in testing for an association in contingency tables