Frog Oak Leaves (IMAGE) Penn State Caption Wood frogs rely on sound to find mates and reproduces, but many breeding ponds are located near noisy roads. A new study reveals that traffic noise is stressful to frogs and impairs the production of antimicrobial peptides--an important defense mechanism against pathogens like the chytrid fungus. Credit Lindsey Swierk Usage Restrictions Credit must be provided alongside image. 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.