Humans often choose partners based on behavioural keys that are displayed during social interactions. The way we behave in different social contexts can reflect personality traits or temperament that may inspire long-term love. Behavioural norms that we perceive as sexually attractive are not culturally or evolutionarily arbitrary.
However, personality-mediated sexual selection is not just the privilege of mankind. In a new study László Garamszegiand colleagues at the University of Antwerp and at Eötvös University, Budapest used bird song as a model to investigate whether behavioural traits involved in sexual advertisement can serve as good indicators of personality in wild animals.
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