Humpback Whale (image) University of New Hampshire Caption This is a humpback whale with a scrape on its jaw. Scientists say injuries such as this one are sometimes a result from bottom-feeding. Credit NOAA/Stellwagen Bank National Marine Sanctuary 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.