Wolf Spider Eating a Toad (image) University of Georgia Caption UGA researchers found that Japanese stiltgrass affects arachnid predators. Wolf spiders thrive in the grass. As their numbers grow, more spiders then feed on young American toads, ultimately reducing the amphibian's survival wherever this grass grows. Credit Jayna DeVore/UGA Usage Restrictions None 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.