Courting and fighting quietly: a lack of acoustic signals in a cooperative Tanganyikan cichlid fish

Research on cichlid fish has revealed remarkable cross-species variation in social and reproductive behavior. Recently, several species of African cichlids have been shown to produce acoustic signals, typically in conjunction with the visual behavioral displays associated with mate choice and competition. However, the recent research conducted on cichlid sound production has focused largely on polygynous cichlids with female care and on species …