The evolution of human language is a topic that has received undiminished attention.
Numerous hypotheses for the origin of human language have been proposed, including …

Research on neighbor-stranger discrimination theory has revealed the significance of social
context and biological traits affecting the mechanisms that drive social discrimination, such …

The way an animal uses the home range and territory often vary in time according to its
breeding state and habitat complexity. Adult dispersal can follow partner replacement …

Highlights•We tested neighbour–stranger discrimination in a Neotropical montane
songbird.•Male grey-browed brushfinches exhibited the nasty neighbour effect.•Males …

Delayed dispersal is mediated by a trade-off between pursuing an immediate reproductive
opportunity by a mature young and securing benefits of parental care for a longer period …

Vocal individuality is essential for social discrimination but has been poorly studied in
animals that produce communal signals (duets or choruses). Song overlapping and …

Neighbour–stranger response differences (NSRDs) are when individuals are either more
aggressive (“Nasty Neighbour”) or less aggressive (“Dear Enemy” or “Dear Neighbour”) to …

Many animal species respond less aggressively to calls emitted by neighbors in comparison
with strangers, an asymmetry known as the “dear enemy” effect. The adaptive significance of …

Social discrimination is used as a territorial cost-mitigation behaviour across several
taxonomic groups. However, whether this phenomenon is similar across populations or …

Model organisms help us understand biological processes and provide insights applicable
to other organisms. Birds are commonly used as model organisms. However, since most …