Along parts of the Western Australian coast, large shells sometimes lie half buried in tidal mud. They belong to Syrinx aruanus, known as the Australian trumpet and regarded as the largest living sea ...

Credit: flickr The leatherback sea turtle, the largest of its kind, grows up to 7 feet long and weighs over 2,000 pounds. Its soft and leathery shell sets it apart from other turtles. Migrating across ...