"Researchers Shelley Berger and Daniel Simola describe how they used epigenetics to change the behavior of ants. Ants have a structured workforce where smaller ones, called minors, tend to forage for food; larger ants, called majors, act as soldiers. By applying compounds to the brains of developing majors, the researchers were able to induce minor-like behavior in this group."
From http://arstechnica.com/science/2016/01/slightly-creepy-experiment-with-ants-shows-that-drugs-can-permanently-alter-behavior/ ...
