Figure 1. (IMAGE) Osaka University Caption The activity of oviposition-promoting neurons changes dramatically according to day length, and the circadian clock gene, <i>period</i>, is required for the response. Credit Osaka University Usage Restrictions None License Licensed 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.