Arabidopsis thaliana on a wall in Cologne (IMAGE) University of Cologne Caption Thale cress (Arabidopsis thaliana) populating the streets of Cologne varies greatly in its genetic make-up, allowing the plants to adapt their reproduction to local environmental conditions such as temperature and human disturbances. Credit Justine Floret Usage Restrictions none License Original 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.