Spatial Spread of Organisms (image) University of Zurich Share Print E-Mail Caption Spatial spread of organisms in small artificial laboratory worlds. The movement paths were recorded using video microscopy. Credit Eawag 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.