Phage in Search of Prey (IMAGE) San Diego State University Caption SDSU microbiologist Jeremy Barr and colleagues tracked the movement of phages and found that they moved 'subdiffusively' throughout a mucus solution, lingering in spots before moving on in search of prey. Credit Steven Giles Usage Restrictions Photo must be credited to Steven Giles 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.