Social complexity affects cognitive abilities but not brain structure in a Poecilid fish
Z. Triki, T. Zhou, E. Argyriou, E. Sousa de Novais, O. Servant, N. Kolm
The study shows that living in larger social groups improves cognitive flexibility in guppies, without affecting brain structure.
bioRxiv · Aug 20, 2023Animal Behavior & Cognition