Fluorescence Micrograph of C. elegans (IMAGE) McGovern Institute for Brain Research Caption This is C. elegans expressing red fluorescent protein in dopamine neurons and green fluorescent protein in dopamine receptor-expressing neurons. Credit Image courtesy Niels Ringstad/MIT Usage Restrictions Permission to use this image must be obtained from copyright holder, Niels Ringstad/MIT. 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.