Weevils Carry Symbiotic Bacteria (image) University of Utah Share Print E-Mail Caption Grain weevils feed on wheat. Bacteria live symbiotically inside of these weevils. University of Utah biologists discovered a new bacterium, called HS, that infected an Indiana man who impaled his hand on a tree branch. They also discovered the new bacterial strain is related to the bacteria that live in grain weevils, shedding light on how bacteria in the environment end up living symbiotically inside insects. Credit Kelly Oakeson, University of Utah Usage Restrictions None Share Print E-Mail 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.