Brazilian red-eared turtle (scientific name: Trachemysscriptaelegans) is a subspecies of Brazilian colored turtle belonging to the family Tortoise. The adult body is oval in shape, the carapace rises gently, the ridge is obvious, and the rear edge is serrated. The head is wide, the nose is blunt, the neck has yellow-green longitudinal stripes, and there are 1 long red patches on both sides behind the eyes. There are yellow-green linear strips on the side and abdomen of the head and neck. The eyes are equal, and the neck is short and thick. The whole body is colorful and colorful, and the carapace is emerald green, and each shield has a yellow-green inlaid circular stripe; The bellybutton is flat and light yellow, with regular black ring patterns like copper coins. The limbs are thick and short, with developed webbed toes. The forelimb has 5 claws and the hind limb has 4 claws. The tail is moderate. During the turtle seedling period, the color is bright and eye-catching, and the whole body is covered with yellow-green inlaid stripes and patterns with uneven thickness. As the individual grows up, the color and patterns gradually fade. The male turtle is small, with a long trunk, long paws on the forelimbs, thick tail base, and the cloaca is far from the rear edge of the abdominal shell. The female turtle has a large body, a short and thick trunk, short paws on the forelimbs, a thin and short tail, and the cloacal foramen is close to the rear edge of the abdominal shell.