Green and Black Locusts (image) eLife Share Print E-Mail Caption A green solitary locust (left) sits alongside black/brown sociable (or 'gregarious') locusts. Credit Yang, Wang, Liu et al., eLife, 2019 Usage Restrictions This image is free to be reused, as long as it is credited as appropriate. Share Print E-Mail 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.