What kind of animal is a sea turtle? What is the introduction of sea turtles

Turtles(scientific name: Chelonia Mydas) is a family of sea turtles, a family of turtles.

The head and back have symmetrical large scales, and the forehead scales are paired. The upper jaw is flat, and the lower jaw is flat.

Slightly hooked upward, with a serrated notch on the jaw margin. The snout is short and rounded, and the front of the palate is not hooked. The dorsal armor is heart-shaped, and the shield pieces are inlaid and arranged; 5 vertebral shields; 4 pairs of ribbed shields, the first pair of ribbed shields are not connected with the neck shield, and the edge shield has 11 pieces on each side; There is a single throat shield in front of the throat shield; There is a series of lower border shields between the dorsal and ventral carapaces.

The limbs are paddle-shaped, the forelimbs are longer than the hind limbs, and each limb has 1 claw on the inside of each limb. dorsal carapace olive or brown with yellowish-white sunburst streaks; dorsal carapace olive or tan with light markings; The tail of the male is long, up to half the length of the body, and the claws of the forelimbs are powerful and curved into hooks.

Habits:

Sea turtles have a very mixed diet, with fish and cephalopods.

Animals, crustaceans, mollusks.

and seaweed. etc. for food. Feed on a variety of marine fish, shrimp, seaweed, crustaceans and molluscs in captivity, and eat a large amount, especially larvae, and prefer carnivorous bait.

Sea turtles eat aquatic plants while also swallowing seawater, ingesting large amounts of salt. In the tear ducts of the turtle.

Some special glands excrete these salts to keep the density of salt in and out of the body consistent, hence the "tearing" phenomenon of turtles on the shore. Healthy turtles raise their heads every once in a while to breathe; Place it on the floor, it will try to crawl; Pull its forelimbs and retract them vigorously; When the turtle is lifted, its forelimbs will slap up and down.

Sea turtles belong to the order Turtles, Turtles, and Turtles.

Sea turtles are widely found in the Atlantic, Pacific and Indian oceans. Chinese sea turtles are found in the coastal waters of the Beibu Gulf from Shandong in the north to the south of the Beibu Gulf. It can be more than 1 meter long and has a lifespan of about 150 years.

There is a pair of forehead scales on the top of the head. The limbs are like oars, the forelimbs are longer than the hind limbs, and each has a claw on the inside. The head, neck, and limbs cannot be retracted into the nail.

Turtle Introduction:

Sea turtles feed mainly on seaweed. It lives in the Atlantic, Pacific, and Indian oceans, and goes to land to lay eggs and hatch larvae. It is a national second-class protected animal.

Sea turtles are adapted to live in the water, and their limbs become fin-shaped, which is good for swimming. They generally only go ashore from the water during the breeding season. Female turtles lay their eggs in burrows dug in the sand.

The snout is short and rounded, the anterior end of the palate is not hooked, and the inner surface of the has two vertical angular crests; The lower jaw is slightly hooked upward, the jaw margin is strongly serrate, and the masticatory surface has a middle crest connected by a short aine process. The dorsal head has large symmetrical scales, and the forehead has 1 pair of scales. The dorsal armor is heart-shaped, and the shield pieces are tiled and inlaid in an arrangement; The neck shield is short and broad, juxtaposed with the adjacent margin shield.

5 vertebral shields, the first is fan-shaped, the second to the fourth is hexagonal, and the fifth is trapezoidal; 4 pairs of ribbed shields, the first pair of ribbed shields do not connect with the neck shield; There are 11 shields on each side. The ventral carapace is flat, the anterior and posterior margins are rounded, and there is a triangular interthroat shield in the anterior part, and the other shields are neatly and symmetrically arranged along the midline of the abdomen.

Sea turtles are not fish, they are mammals. Sea turtles belong to the order Turtles, Turtles, and Turtles.