And that is how the desert locust lost its memory

The desert locust (a type of grasshopper), much like Dr Jekyll/Mr Hyde, goes from being an innocuous solitary-living individual to become a voracious gregarious animal that destroys everything on its path (and back). These two very different “personas” are remarkable adaptations of a single genome to distinct environments. But apparently, this flexibility is even more impressive, as they reveal that the locust’ solitarious and gregarious forms also have different memory and learning abilities to suit the needs of the two life stages.