Within-clutch patterns of yolk testosterone vary with the onset of incubation in black-headed gulls
When are two heads better than one? Visual perception and information transfer affect vigilance coordination in foraging groups
Reproductive promiscuity in the splendid fairy-wren: effects of group size and auxiliary reproduction
Is there an optimal number of helpers in Alpine marmot family groups?
The effects of habitat- and diet-based cues on association preferences in three-spined sticklebacks
Testosterone, immunocompetence, and honest sexual signaling in male red grouse
Associations between first encounters and ensuing social relations within dyads of two species of lacertid lizards
Chic chicks: the evolution of chick ornamentation in rails
Pup escorting in the communal breeding banded mongoose: behavior, benefits, and maintenance
Extreme polygyny among southern elephant seals on Sea Lion Island, Falkland Islands
Reproductive monopoly enforced by sterile police workers in a queenless ant
Body size–dependent gender role in a simultaneous hermaphrodite freshwater snail, Physa acuta
Ultraviolet reflection and predation risk in diurnal and nocturnal Lepidoptera
Kinship in colonial tuco-tucos: evidence from group composition and population structure
Sex ratio variation in the cooperatively breeding alpine marmot Marmota marmota
Modification of the visual background increases the conspicuousness of golden-collared manakin displays
Effects of territorial intrusions on eavesdropping neighbors: communication networks in nightingales
Nocturnal anti-predator adaptations in eared and earless Nearctic Lepidoptera
The relation between dominance and exploratory behavior is context-dependent in wild great tits
Nest size predicts the effect of food supplementation to magpie nestlings on their immunocompetence: an experimental test of nest size indicating parental ability
Social wasps desert the colony and aggregate outside if parasitized: parasite manipulation?
A farewell to Bonferroni: the problems of low statistical power and publication bias