image: These are side views of an adult male Gregarious (left) and a Solitarious (right) phase locusts, showing their distinctive differences in color and posture. This image accompanied the report "Serotonin Mediates Behavioral Gregarization Underlying Swarm Formation in Desert Locusts," by Dr. Anstey and colleagues appearing in the Jan. 30, 2009, issue of Science. view more
Credit: Image copyright Tom Fayle via <i>Science</i>-AAAS