Eciton hamatum soldier. The odd, globular eyes of army ants are the evolutionary result of resuscitating a vestigial organ inherited from blind ancestors. Jatun Sacha reserve, Napo, Ecuador
Laboratory colony at the University of Illinois, collected in Maliau Basin, Borneo.
Colonies of the rare amblyoponine genus Mystrium have workers of different sizes and body proportions. Laboratory colony at the University of Illinois, originally collected in Maliau Basin, Borneo.
