Catfish head is big and flat, mouth is wide, upper and lower jaws have four long whiskers, without scales and sticky skin. The back is light black, the abdomen is white, and the thorns on the dorsal fin and pectoral fin are poisonous. There are about 2500 species, distributed all over the world. It grows in rivers, lakes and ponds, inhabits underwater mud during the day and comes out at night, feeding on small fish, shellfish and frogs.
You can make a sentence as follows:
1, the little catfish in the dream came back to reality, and it was still waiting alone in the fish tank. In my dream, my family and I were happy in the river, but everything could not go back. Maybe I will be a delicacy for mankind.
2, but some fish can't, such as catfish with sharp green snake spines.
3. Trout, catfish, Ankang fish, crayfish seafood soup, garlic bread.
4. It is the largest catfish in North America and the third largest pure freshwater fish in North America, followed by Amur sturgeon and white sturgeon respectively.
In the previous study of other species of catfish, scientists found that they usually use unique teeth to scrape off organic matter from the surface of trees that sink to the bottom of the water to satisfy hunger.
6. It is found that walking catfish in Southeast Asia can stay on land for several hours at a time. The lungfish in Australia, Africa and South America can survive without water, but the water is inactive.