Global gut bacteria patterns in piglets (IMAGE) Purdue University Caption Piglets the world over share certain change patterns in their gut bacteria as they grow, according to an analysis of studies conducted in Australia, Canada, China, the Netherlands, Norway and the U.S. Credit Purdue Agricultural Communications photo/Tom Campbell Usage Restrictions News organizations may use this image in reports about the work of Purdue University's Tim Johnson and his collaborators. 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.