What are the physical characteristics of a turtle? Description of the characteristics and appearance

The tortoise's appearance is characterized by its oval shell. This case is hard and protects it well. Its limbs are short, and it will shrink its limbs and head into its shell when in danger.

The torso is two pieces of armor that wrap itself around the limbs and head and tail, but can be retracted into the shell.

The tortoise is characterized by a stiff lid and 4 lower legs often curled up under the lid, and the neck and head of the tortoise are often tucked into the tortoise shell.

He's like a bunker, and I don't know if you ever feel like he has a sturdy shell and a fragile body with freely stretched limbs.

The shape of the turtle is characterized by the fact that the tortoise's limbs are thick and powerful, and they are grayish-brown in color. The turtle's head is relatively small, the front part of the top of the head is smooth, and the ** behind it has polygons.

The scales are fine-grained, with dark trimmed yellow stripes and maculas on the side of the head, and extend posteriorly to the neck. The tortoise carapace is flattened and has three longitudinal ridges, which appear tan in color, and the male is closer to black. Turtles have a relatively short tail and webbed paws.

The phenomenon of the turtle:

Since ancient times, it has been believed that the turtle can bring auspicious energy, and is a symbol of good luck, health, good luck and longevity, and it is also worshipped because it is a hard-working animal.

The most striking feature of the tortoise's appearance is the thick shell on its back.

It has a slender and long neck and eyes the size of mung beans, and the turtle generally lives in rivers and lakes and other waters, and has a gentle temperament and grows slowly. The tortoise is an ectothermic animal.

Its metabolic activity all changes with changes in the outside temperature. Turtles are also omnivorous and can eat a lot of things.

The characteristics and appearance of the turtle are described as follows:

1. It has a triangular head, and two small round eyes are always looking around. Its eyelids are interesting, other animals have eyelids on top, but their eyelids are on the bottom. All four of its feet are short, and there is flesh like a purple-like between the toes.

It has a set of "protective suits" on it, which is its "armor".

2. There are 13 hexagonal patterns on the armor, and whether it is a big turtle or a small turtle, it always "carries" 13 hexagonal diagrams of different sizes. Its tail is thick, short, and pointed, making it a rare tail in animals.

3. The tortoise has thick limbs, a hard shell, the head, tail and limbs can be retracted into the shell, the upper and lower jaws are toothless, the jaw margin is horny sheath, called the beak, there is a muscular tongue, can not be stretched out, there are eyelids and transient membranes, the pupils are round, and the special morphological structure that is significantly different from other reptiles is a turtle shell.

4. The dorsal and abdominal carapaces of the turtle are connected by bone seams, and they are fixed and cannot be moved. Its dorsal body is brown, and its ventral surface is slightly lighter, piggybacking yellow. The dorsal armor is flattened, the limbs are brown, and there are full webs between the fingers and toes, all of which have claws.

The male turtle is small in size, has a long tail, and has a body surface like a dorsal carapace, and the abdominal carapace, head, neck, and limbs are all black, with a characteristic odor.

The female turtle has a large body with a short tail and a mostly yellow dorsal carapace, while the rest of the turtle is yellowish-green and has no special smell.

A brief description of the appearance characteristics of the turtle is that the limbs of the turtle are thick and powerful, and they are gray-brown in color.

Turtles are reptiles of the genus Turtleidae. The head is small, less than 1 4 as wide as the dorsal carapace, the anterior part of the top of the head is smooth, and the posterior part ** has fine-grained scales; The snout is obliquely cut medially, and the sheath of the beak margin is thinner; The angle between the left and right teeth of the lower jaw is less than 90°. The dorsal carapace is flattened, with 3 longitudinal ridges, the limbs are slightly flattened, and the fingers and toes are webbed, and there are claws.

The tail is shorter and smaller. The dorsal carapace is brown, the ventral carapace and the nail bridge are brownish-yellow, and each shield has a large black-brown spotted blue cover. head olive or black-brown; There are yellow-striped yellow stripes and macula on the side of the head and pharynx, which extend posteriorly to the neck. Males are almost entirely black with a foul odor, and females are brown on their dorsal shells.

Turtles are half-water, half-inhabited, half-terrestrial reptiles. It mainly inhabits rivers, lakes, reservoirs, ponds and other waters.

Range of distribution of tortoises:

It is found in Japan (Honbu Prefecture, Kyushu), North Korea, South Korea, Timor-Leste, Indonesia (smaller Sanda Island), Palau, and China. In China, it is distributed in Hebei, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Shandong, Henan, Hubei, Hunan, Hong Kong, Guangdong, Guangxi, Sichuan, Guizhou, Yunnan, Shaanxi, Gansu, Taiwan and other places; It is distributed all over Guangxi, and there are more in Yulin, Bo Cheng Bai and Yongning. It has been introduced in Europe, America and other places.

The tortoise's shell is very hard, the tortoise's abdomen also has carapaces, and the limbs are thick, and the head, tail, and limbs can be retracted into the shell. It feeds on animal insects, worms, small fish, shrimp, snails, mussels, young leaves of plants, duckweed, melon skins, wheat grains, rice, weed seeds, etc. It is resistant to hunger and will not starve to death if it does not eat for months.

Turtles are ectotherms, and when the water temperature drops below 10, they lie still in the mud or loose soil with mulch. <

The tortoiseshell of the tortoise is very hard, the tortoise belly also has carapaces, the limbs are thick, the shell, head, tail and limbs of the turtle have scales, and the head, tail and limbs can be retracted into the shell. It feeds on animal insects, worms, small fish, shrimp, snails, mussels, young leaves of plants, duckweed, melon skins, wheat grains, rice, weed seeds, etc. It is resistant to hunger and will not starve to death if it does not eat for months.

Turtles are ectotherms. When the water temperature drops below 10, it lies still in the bottom silt or loose soil with mulch. The hibernation period is generally from January to the beginning of April of the following year, when the water temperature rises to 15, the burrow is active, and the water temperature is 18 to 20 to start feeding.