Aromatase Expression and Function in the Brain and Behavior:A Comparison Across Communication Systems in Teleosts

•Aromatase expression in visual, auditory, olfactory, and electrosensory pathways.•Aromatase expression is conserved in sensory afferent nerve fibers across teleosts.•Aromatase activity affects motivation for reproduction and aggression in teleosts.•Aromatase and estrogen receptors expressed in control nuclei for signal production.•Need more localized aromatase inhibition studies to assess role of local estrogens.