Starving Larvae and Calcium Waves (IMAGE) National Centre for Biological Sciences Caption A fruit fly larva that no longer has access to dietary protein is sensed as the amino acid Arginine. To continue developing it generates calcium waves in glutamate containing neurons. The calcium waves help the larva become a pupa and finally a fruit fly. Credit Preethi Ravi 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.