Fighting experience plays key role in brain chemical's control of male aggression

Like humans, mice will compete over territory and mates, and show increased confidence in their fighting skills the more they win. At first, a brain chemical called dopamine is essential for young males to master this behavior. But as they gain experience, the chemical grows less important in promoting aggression, a new study shows.

source https://www.sciencedaily.com/releases/2025/01/250122125615.htm