Animal Behavior & CognitionbioRxivPreprint
Social benefits of facial experssion in a cichlid fish: Testing the face concentration hypothesis
Shun Satoh, Kazuya Fukuda, Hiroshi Matsui…·Nobuyuki Kutsukake
This study investigates the social function of facial coloration in cichlid fish, finding it reduces aggression and is controlled by the sympathetic nervous system, independent of mammalian facial expressions.
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