Polity (image) National Institute for Mathematical and Biological Synthesis (NIMBioS) Share Print E-Mail Caption This image shows a hexagonal array of initially autonomous local communities or villages, which is part of a polity. Polities grow, decrease in size, or disappear as a result of conquest with the winner absorbing all of part of the loser. Credit Gavrilets S, Anderson D, Turchin P. Usage Restrictions None 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.