Ask the name of a rare animal, the name of a rare animal in our country is five

Wenchang fish, also known as Bai's Wenchang fish, slug, double-pointed fish or sea spear, is a precious marine animal, its morphological structure is extremely special, both invertebrate characteristics, and vertebrate characteristics, is a typical representative of the transition type of invertebrate evolution to vertebrates, so it is highly valued by the biological community at home and abroad, and China lists it as a national class II protected animal.

The appearance of Wenchang fish is very strange and interesting, its body size is very small, the left and right sides are flat, the two ends are pointed and thin, the whole body is spindle-shaped, slightly like a small fish, the general body length is only 4-5 cm, and the largest is only centimeter. However, it is different from fish in that the head has not yet differentiated, and there is neither an obvious head, nor an obvious brain and sensory organs such as eyes, ears, and nose, so it is also called headless. At the front of the body there is a small black spot called the eyespot, which can sense the intensity of light, and the larvae are especially photophobic.

In the middle of the ventral surface of the front end, there is a ring of membrane composed of a mouthpiece, and there are 37-45 tentacles around the mouth, and the number of tentacles increases with age, and there are sensory protrusions on the tentacles, which are more sensitive, which can protect the mouthpiece and prevent coarse objects from entering the mouth. It does not have paired even fins, but has a relatively wide spear-like caudal fin at the posterior end of the body, and a dorsal fold or dorsal fin formed by **folding along the midline along the entire length of the dorsal back, and is tightly connected with the caudal fin. The ventral side of the caudal fin is connected to the anterior anal fin in front of it, and these fins are unpaired.

In the anterior fin of the anal %

Tong'an Wenchang fish is a rare fish species in the world. It has a "notochord" on its back, which is a living specimen of the transition from invertebrate to vertebrate, and is a living fossil for the study of vertebrate evolution in biological science.

The five rare animals in our country are as follows: 1. Elk swimmer deer: artiodactyl, inhabiting swampy areas and feeding on grass and aquatic plants;

2. Panda: inhabits the arrow bamboo forest, afraid of cold and heat, lonely, male and female separated, can swim, good at climbing trees, living in tree holes and stone gaps, likes to eat bamboo, also eats fruits and animal bones, docile, weak self-defense ability, often injured by natural enemies, distributed in the west and north of Sichuan, China;

3. Chinese alligator: Reptiles, a rare animal that is a specialty of China, inhabits the bottom of ponds and marshes, and feeds on fish, frogs and small birds. It breeds in July, lays eggs, and hatches with sunlight and weed decay. Female crocodile has strong nest protection;

4. Giant salamander: also known as baby fish, amphibian, one of the world's largest amphibians, a rare animal endemic to China, inhabiting mountain streams, day and night, preying on fish, shrimp and insects, in vitro fertilization, widely distributed in China, to Central China and South China;

5. Golden snub-nosed monkey: primates, shoulders covered with golden yellow hair, living in 3000 meters of alpine tree forest, arboreal group, feeding on wild fruits, shoots and bamboo shoots, China's special rare phenomen.

There are thousands of rare animals in <>, the main rare animals in our country are giant pandas, red-crowned cranes, Siberian tigers, golden snub-nosed monkeys, golden eagles, baby fish, white-sided dolphins, etc., among which the giant panda is a national treasure of China, and it is also a unique animal of China's troubled school, the red-crowned crane is a large wading bird, its feathers are white, the top of the head is red, the Siberian tiger is a feline distributed in northeast Asia, the number is small.

1. Giant pandas.

Rare animals include giant pandas. The giant panda is a national treasure of filial piety in China, known as a living fossil, and has survived on the earth for 8 million years, its hair is composed of black and white, and its body is fat, and it often lives in bamboo forests or high mountains and valleys, and feeds on bamboo shoots and bamboo leaves.

2. Red-crowned cranes.

Rare animals include red-crowned cranes. The red-crowned crane is a national first-class protected animal, its feathers are white, the top of the head is red, the head, neck, tail, and toes are black, and it often grows in open plains, lakes, grasslands and other environments, but in the process of migration, it will also rest and hunt in farmland or cultivated land.

3. Siberian tigers.

Rare animals include Siberian tigers. The Siberian tiger is a carnivorous cat in northeast Asia, with yellow and black stripes on its back and white belly, often growing in mixed coniferous and broad-leaved forests, feeding on wild boars, red deer, sambar deer and other animals, and also eating berries and insects when food is scarce.