Leatherback turtles are the largest species of sea turtles, reaching lengths of up to 7 feet and weighing as much as 2,000 pounds. Unlike other turtles, they have a unique, leathery shell instead of a hard, bony one. These turtles primarily feed on jellyfish and are known for their long migrations, traveling thousands of miles between feeding and nesting grounds. Leatherback turtles are found in oceans around the world, from the tropics to the Arctic. They play a crucial role in marine ecosystems by helping to control jellyfish populations. Unfortunately, they face threats from plastic pollution, fishing gear entanglement, and habitat loss, leading to their classification as vulnerable.