Loggerhead sea turtles are large marine reptiles known for their distinctive heart-shaped shells and strong jaws. They can weigh up to 350 pounds and are found in oceans around the world, particularly in warm waters. Loggerheads primarily feed on jellyfish, conchs, and crustaceans, using their powerful beaks to crush hard-shelled prey. These turtles are classified as endangered due to threats like habitat loss, pollution, and entanglement in fishing gear. Loggerheads are known for their long migrations, traveling thousands of miles between feeding and nesting sites. They typically return to the same beaches where they were born to lay their eggs.