The green turtle, also known as the sea turtle, is one of the larger hard-shelled turtles. The dorsal armor is dark brown or dark green, with yellow spots on it, and the scutellum is arranged in mosaic, with beautiful color. The limbs are specialized into fins, the forelimbs are longer than the hindlimbs, and the medial side has 1 claw each. The claws of the male forelimbs are strong and curved into a hook shape. Widely distributed in tropical and subtropical marine and coastal waters. In China, green sea turtles are distributed from the coast of Shandong in the north to the Beibu Gulf in the south. It mainly inhabits coral reefs, salt marshes and seagrass beds, and spends most of its time in shallow coastal waters with lush seagrass beds. Seaweed as a staple food, occasionally also eat mollusks, arthropods or fish.

The green turtle is one of the larger hard-shelled turtles, named for the pale green color of body fat. Mainly distributed in tropical and subtropical waters, widely inhabited in coral reefs, salt marshes and seagrass beds and other coastal shallow water areas. It feeds on seaweeds and macroalgae and occasionally on molluscs, arthropods, or fish. It is a large migratory sea turtle that forages in a fixed area and lays its eggs in another. Female green turtles usually climb the beach at night to build nests, laying dozens to more than 100 eggs per nest, and the incubation period is about 50 days. Sex is determined by the temperature at the time of incubation, and at 28 to 30 degrees Celsius, the ratio of male to female is roughly equal.

It is a type of reptile that lives in the ocean, belonging to the order Turtles and family Turtles. Distributed in tropical and subtropical waters around the world, it feeds on seagrass, jellyfish, mollusks, and crustaceans. Long lifespan, some individuals can live to over 100 years old. The body is streamlined and the limbs have evolved into paddle shaped fins, making it very suitable for swimming in water. The shell is divided into the carapace and the plastron, with the carapace being their main protective structure and the plastron providing stability during swimming. The breeding method is special. Females will build nests and lay eggs on the beach, then bury the eggs in the sand and rely on the heat of the sun to naturally hatch. Many species are listed as endangered.

Sea turtles are a collective term for marine turtles in the order Turtles, family Turtles, and family Turtles. Body length 0.75-2 meters, weight 45-1000 kilograms. Distributed in the South Pacific and Indian Ocean. In China, it is distributed from Shandong coast in the north to Guangdong coastal provinces, Taiwan, Hainan and other provinces in the south, especially the South China Sea Islands. Most of them live in shallow coastal waters, bays, coral reefs, and estuaries that flow into the sea. Feed on macroalgae, cephalopods, crustaceans, and fish and shrimp. They are one of the oldest animals in the world, appearing on Earth more than 200 million years ago, so archaeologists consider them as "living fossils".

Green sea turtles are reptiles of the family Turtles in the order Turtles, also known as sea turtles. The lifespan can reach over 100 years. Green sea turtles are distributed in warm waters of the Atlantic, Pacific, and Indian Oceans, and are found along the coasts of Shandong, Zhejiang, Fujian, Guangdong, Taiwan, and other regions in China. Food sources include fish, crustaceans, mollusks, and seaweed. According to the survey, green sea turtles are the most frequently occurring and widely distributed sea turtles in China, but their numbers have significantly decreased. The main reasons for the decline in its population are human predation, destruction of spawning grounds, death from fishing nets, and seawater pollution. Listed as a first-class protected animal in China.

The flat backed turtle is a species of sea turtle unique to Australia. Among sea turtles, only the hatchlings of flat backed turtles live in coastal waters and do not swim into the ocean, which is why they are unique to Australia. The flat backed turtle shell can grow up to 1 meter long and weigh up to 80 kilograms. The back shell is flat and circular, with a gray olive color and a brownish yellow edge. The edge shield has a thin layer of wax. Flat backed turtles are omnivorous turtles with a preference for meat, mainly feeding on mollusks. The flatback turtle is a CITES Class I protected animal under the Washington Convention.

Green sea turtles are reptiles of the family Turtles in the order Turtles, also known as sea turtles. The lifespan can reach over 100 years. Green sea turtles are distributed in warm waters of the Atlantic, Pacific, and Indian Oceans, and are found along the coasts of Shandong, Zhejiang, Fujian, Guangdong, Taiwan, and other regions in China. Food sources include fish, crustaceans, mollusks, and seaweed. According to the survey, green sea turtles are the most frequently occurring and widely distributed sea turtles in China, but their numbers have significantly decreased. The main reasons for the decline in its population are human predation, destruction of spawning grounds, death from fishing nets, and seawater pollution. Listed as a first-class protected animal in China.