Laborer, Doorkeeper, Future Queen: Neurobiology In Turtle Ants Reflects Division Of Labor (image) PLOS Share Print E-Mail Caption Extreme morphological differentiation in C. varians. Soldier (A, left) compared to a minor worker (A, right). (B) Soldier using shield-shaped head to block nest entrance (minor worker above). Credit Alexander Wild, 2019 Usage Restrictions CC-BY: Redistribution permitted with credit Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.