The sea turtle is classified as a reptile. Belonging to the order Testudines, sea turtles are characterized by their distinct shell, which provides protection and buoyancy in aquatic environments. These ancient creatures have adapted to life in the ocean, using their flippers for swimming and possessing a streamlined body that allows them to navigate vast distances. Sea turtles are known for their migratory behavior, often traveling thousands of miles between nesting and feeding grounds. They play a crucial role in marine ecosystems by helping maintain healthy seagrass beds and coral reefs, and their conservation is essential due to various threats they face.