The biggest turtle in the world.

The biggest turtle in the world is leatherback turtle.

Leatherback Turtle, also known as Leatherback Turtle, is the largest turtle, with a maximum total body length of 3 meters and a shell length of more than 2 meters. The weight can reach 800-900 kg. Leatherback turtles are mainly distributed in tropical Pacific Ocean, Atlantic Ocean and Indian Ocean, and occasionally found in temperate waters. It is distributed in tropical to temperate seas, and reaches the coast of Siberia, the South China Sea, the East China Sea, the Yellow Sea, Hainan Coast and the coast of Taiwan Province Province in China in the north. It mostly inhabits the upper and middle tropical waters, and sometimes enters the offshore and harbor. According to the turtle investigation report published by Duke University's research team at the beginning of 2 1 century, leatherback turtles may become extinct within 10-20 years. ?

Leatherback turtle is the largest turtle in the world, which can be called "giant turtle". ?

The shape of leatherback turtle

Its head, limbs and body are covered with smooth leather skin, and there is no horny shield. The bony shell of the carapace is inlaid with hundreds of small polygonal bone plates with irregular sizes, of which the largest bone plate forms seven regular longitudinal ridges, hence its name, and some people also call it a leather turtle. The blunt longitudinal edges of this tung tree extend into pointed buttocks at the rear end of the body, and the two longitudinal edges on the side of the body form irregular nail edges. There is no small bone plate embedded in the bone shell of the abdominal nail, which is composed of many small bones firmly embedded in dense tissue, and the central row is split where the umbilical cord passes.

Its mouth is hooked and its head is too big to be retracted into the shell. The limbs are paddle-shaped and claw-free, and the phalanges of the forelimbs are particularly long. The back of adult turtles is dark brown or rent black, decorated with yellow or white spots, and the abdomen is gray.