Bravery may cost fish their lives
Fish that show bravery often become prey themselves, whereas shyer individuals survive to a greater extent. Researchers at Lund University in Sweden have now successfully established a connection between bold personalities and the risk of being killed by a predator in the wild. The researchers marked common roaches, a widespread freshwater fish, and studied their personalities. After investigating
https://www.lunduniversity.lu.se/article/bravery-may-cost-fish-their-lives - 2025-11-27
