Personality traits change after an opportunity to mate

Chloé Monestier’s paper on personality trait development in female sticklebacks was just published in Proceedings of the Royal Society of London, Series B. Early life experience is often thought to be the most important time for personality trait development. But in this paper, Chloé shows that personality traits can continue to change throughout the life course, and in response to formative life history events such as mating for the first time.