Hawksbill Turtle Carapace (IMAGE) Monterey Bay Aquarium Caption A new study from Monterey Bay Aquarium researchers studied the historical trade of tortoiseshell made from the carapaces of hawksbill turtles like the one pictured, which was photographed during a necropsy in Hawaii. Credit Kyle Van Houtan/NOAA Usage Restrictions Must credit. 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.