Mosquito ears (IMAGE) Nagoya University Caption Sections of male (left) and female (right) mosquito ears showing extensive expression of the major neurotransmitter serotonin in green. Credit Yifeng Xu Usage Restrictions This image may be used with appropriate credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.