The family Cheloniidae consists of marine turtles, commonly known as hard-shelled turtles. These reptiles are characterized by their streamlined bodies and strong flippers, which make them excellent swimmers. There are seven species within this family, including the green turtle and the loggerhead turtle. They primarily inhabit tropical and subtropical oceans around the world. Cheloniidae turtles are known for their long migrations, often traveling thousands of miles between feeding and nesting grounds. They primarily feed on a diet of sea grasses, algae, and jellyfish. Conservation efforts are crucial for their survival, as many species face threats from habitat loss, pollution, and climate change.