Sea turtles are large marine reptiles known for their distinctive shells and flippers. They belong to the order Testudines and are found in oceans around the world. There are seven species of sea turtles, including the loggerhead and green turtle. These creatures are known for their long migrations, often traveling thousands of miles between feeding and nesting sites. Sea turtles primarily feed on a diet of jellyfish, seaweed, and crustaceans. They play a crucial role in maintaining the health of marine ecosystems by controlling jellyfish populations and contributing to the health of seagrass beds. Unfortunately, many sea turtle species are threatened due to habitat loss, pollution, and hunting.