Contact: Louis Bergeron
Caption: This composite illustration made from two separate photos illustrates the fighting phase of the study, when the female (upper left) watches the piscine pugilism of two brightly colored males (foreground) battling for her affection.
Credit: Todd Anderson
Usage Restrictions: Image may not be altered or sold for profit and must be credited to Todd Anderson.
Related news release: Female fish -- and humans? -- lose interest when their male loses a slugfest