Soft Matter Physicist Peter Yunker (IMAGE) Georgia Institute of Technology Caption Principal investigator Peter Yunker in a photo for an unrelated experiment. Here, Yunker is looking at an image for a study on changes in territorial divisions caused by dueling strains of cholera bacteria. Credit Rob Felt / Georgia Tech 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.