Ocean conservationist and photographer Juan Oliphant was diving in water off Oahu's North Shore when he and his group stumbled on a startling discovery. Twenty-five feet from the shore, they found a dead, young green sea turtle. Fishing line, which had snagged on the reef, was tangled all around the turtle's body, trapping it underwater and keeping it from coming up for air. "It was the first time I've seen a turtle that was tied to the reef and drowned from it," he told The Huffington Post.