Puffadder Shysharks (IMAGE) Heinrich-Heine University Duesseldorf Caption Researchers from HHU examined puffadder shysharks in South Africa. They found that the sharks are being harmed by ocean acidification caused by climate change. Credit Lutz Auerswald Usage Restrictions None 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.