"Katarina Zarutskie was on vacation in the Bahamas with her boyfriend and his family when she posed with sharks for her Instagram page. Suddenly, a shark sinks its teeth into her arm and drags her underwater. After a frightening struggle, Katarina was able to free herself, but she was left with a giant gash and teeth marks on her arm. 'It was a very scary experience,” she said. “I was pulled underwater for 8 seconds.'"