关于鱼的趣事

有趣的，不超过60字

鱼当“医生”在土耳其坎加尔温泉疗养区的水池中,有一些能帮人治疗牛皮癣等皮肤病的鱼类。每逢病人赤身裸体下到水中,它们就会立刻围拢过来“,轻吻”患者的疮疤,清除伤口上和病区表面的有害物质,使病人的疮疤在毫无痛感之下痊愈。鳄鱼摆渡在非洲刚果,当地人经常在河道交织、

fish is the most ancient vertebrate. they are almost all taken up residence in the earth's aquatic environment ━ ━ of fresh water from lakes, rivers and the sea of salt water into the ocean. the world's existing stocks of about 20,004 thousands. in the sea of life who account for two-thirds of the rest live in fresh water. chinese are 2 hundred thousand 5, for which there are 100 kinds of medicinal more common medicinal animal hippocampus, dragon, eels, carp, carp, sturgeon (fish for fish glue), large yellow croaker (otolith for fish brain stone), sharks and so on. in addition, commonly used in the pharmaceutical industry for raw materials, such as cod, skate or shark liver extract is cod liver oil (vitamin a and vitamin d) of the main raw material. from a variety of fish, can be hydrolyzed protein extract, cytochrome c, lecithin, cephalin, and so on. puffer fish's liver and ovary contains a large number of tetrodotoxin can be extracted from the treatment of neuropathy, cramps, tumor diseases, and so on. the large-scale fish bile can distill "pigment calcium salt", in order to create artificial bezoar of raw materials. fish of all the key link between the big difference as the key link between terrestrial vertebrates. it is generally believed that the fish body is as smooth and spindle-shaped, was streamlined, with fins, gills of aquatic animals to breathe, but do not meet the definition of species. some fish very long, some short; some flat side, and some flat; some big fins or complex shapes, and some degradation and even to digest; mouth, eyes, nose, the shape of gill opening position of great change; some fish to breathe air, anti-submerged in the water will drown. fish is an important human food. over-fishing, pollution and climate change will destroy fish stocks. larvae feed on fish, help to control mosquito-borne diseases such as malaria. fish is the behavior, physiology, ecology and the importance of medical laboratory animals. many ornamental fish to feed many species of fish swim is. long fish from less than 10 mm (0.4 inches) to 20 meters (60 feet) and weighing about 1.5 grams to about 4000 kg (8000 pounds). multi-color line and the environment and a hidden role. some fish bright color, stripe manner, meaning identification. some fish can reduce zhang pigment cells change color, and some fish can be luminous. fish is a cold-blooded aquatic vertebrates, with gills to breathe, with fins and jaw. existing fish can be divided into two main groups: cartilaginous fish (such as sharks, etc.) and bony fish (fins and the wavy line of fin fish). the two groups of fish are first in the early devonian. fin fish in a line of a group known as the advanced bony fish, in the beginning of the evolution of the jurassic time, to today, has become the largest number of fish. also has several species of fish. fish, accompanied by human beings through the course of five thousand years, humans have forged a bond that has become extremely important in our daily lives and watch the pet food, but about what animals are "fish"? the definition of how to fish, but those who know very little. with the development of science, people of the fish under the definition has changed.

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