Simulation of Movement Patterns (IMAGE) Aarhus University Caption Here is a simulation of movement patterns and population dynamics of harbor porpoises in the North Sea. The black fields are hypothetical offshore wind farms. Credit Aarhus University Usage Restrictions None License Licensed content 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.