Mice and Microbiome (IMAGE) DOE/Pacific Northwest National Laboratory Caption Berkeley Lab staff scientist Jian-Hua Mao looks on as research scientist Antoine Snijders handles one of the mice used in a new study examining how early environmental exposure and genetics play a big role in shaping the microbiome's "signature" in the gut. Credit Credit: Marilyn Chung/Berkeley Lab Usage Restrictions Please use credit info. 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.