Locusts are notorious as being indiscriminate devourers of everything and somewhat mindless in their attack. Although desert locusts are infamous for their swarming behavior, they usually occur in a solitary form, living alone and actively avoiding fellow locusts. The difference between a swarming locust brain and a solitary locust brain is quite extraordinary. Despite being smaller than solitary locusts, swarming locusts developed brains that were 30% larger. Not only that, regions of the brain that are dedicated to different tasks had very different proportions in the two phases.