As a child, did you ever catch a unique fish in a pond or stream? There are frightening mouthparts, and if you look closely, you will find that there are
Lots of teeth, like the alien man-eating monsters in science fiction movies.
The lamprey is one of the few remaining jawless vertebrate fish-shaped animals. The discovered lamprey eel fossils, 360 million years old, preceded the advent of dinosaurs. Therefore, the lamprey eel is called the "living fossil" Cy C LOSTOMATA and the order PETROMYZONIFORMES. Bentong is the most primitive and lowest grade of the ridge pusher Yayin, and is a specialty of our province, distributed in the Nenjiang, Songhuajiang, Mudanjiang, Ussuri River, Heilongjiang and various tributaries, its body shape structure and living habits show a series of basic characteristics common to the ridge thrusters, such as: the difficulty of the head bone piece and the spine push bone piece, the differentiation of the brain and the sensory party organs, the formation of the heart and kidneys, and the operation mode of blood circulation, etc., all of which initially have the typical characteristics of the ridge pusher; However, on the other hand, it also presents its special primitive characteristics such as: cartilage and even colloidal bone pieces, single nostrils, cysts gills, nostrils, no even fins, no catheters in the reproductive nest, etc. Ecologically: camp cattle parasitic life, reproductive period digestive tube extreme wilting. A seven-cheeked eel is a round-mouthed tung. Both represent animals and have the characteristics of the initial stage of the evolution of the ridge pusher. However, until now, there is very little information in the prison about the orange structure and ecological habits of the seven-cheeked eel, and there is not much content in the foreign language textbooks that have been translated, and even some people observe the same species of animals and obtain different orange fruits. Compared with the 17-cheek eel produced in China, the fruit he obtained is more different in body shape and orange structure due to the difference in genera and species. There are also certain brief problems in the use of handicap, and fishermen in this province mostly think that the seven-cheeked eel is poisonous and rarely eaten; In fact, it has very few internal organs and no bone.