The rapid and gradual fin whale songs changes adopted by individuals of a certain area provide evidence of vocal learning in this species, elucidate patterns of song evolution and hints on the limits of song variation.

Bonobo groups that share overlapping ranging areas and engage in regular social exchange show "behavioural group identity" of hunting techniques in the absence of local ecological variation.

Empathy can evolve and foster cooperation in a game-theoretic analysis of behavior.

Ephemeral leadership between differently experienced birds regulates the balance between exploration and exploitation over successive homing flights in a manner that facilitates the accumulation of route innovations.

A description of evolution that is based on birth-death processes, and in which fitness is at most a derived quantity, is advocated.

A novel, hybrid segmentation technique reveals human heterogeneity in barriers towards a behavior, and is applied to characterize distinct segments in voluntary medical male circumcision.

Alteration of host gut microbiota by antibiotic exposure in early life remodeled host intestinal immune development and metabolism and enhanced the induction of type 1 diabetes in genetically predisposed animals.

Hypothetical battles between animals can be used to interest the general public in biology.

Tool behaviour of long-tailed macaques leaves archaeological signatures that differ between populations despite similar ecological conditions, highlighting the potential for diversity in material culture.

Mapping functional relationships between multiple ecosystem services (ES) reveals previously unidentified areas of high ES value, which suggests that the spatial focus of planning for optimal ES provisioning may shift when relationships between several ES are considered.