With the evolution of the environment, more and more creatures have mutated, and many creatures have become the bosses of the dominant side due to the lack of natural enemies. The picture shows the snakehead fish, commonly known as "blackfish", it is fierce, fertile, appetite is very large, often can eat all other fish in a lake or pond, and even do not let go of their own juvenile fish.
The picture shows the toad-bearded catfish, commonly known as the Egyptian pond lice. Thailand mainly eats freshwater fish, and the breeding technology and method of toad catfish are basically the same as those of local bearded catfish, and have the advantages of miscellaneous food, large individuals, fast growth and high yield.
The picture shows carp, foraging at the roots of aquatic plants, and then causing the water to be turbid. It has become an important obstacle for the U.S. government to control the river.
Pictured is nile perch. A species of the genus Sharp-billed bass in the family Plesiaceae. One of the 100 most influential invasive species in the world, this carnivorous fish eats fiercely, and when hooked, it constantly jumps out of the water in an attempt to decouple. They are widely distributed in the biogeographic area of Ethiopia and occur in lake chad, congo, nile, senegal, lake Turkana and other river basins.
The picture shows mosquito-eating fish. A species of mosquito-eating fish in the genus Medaka suborder Medaka suborder Medaka. The body is long, slightly flattened, and only 15.5 to 37.5 mm long. The male is slightly elongated; the ventral margin of the female is rounded and convex. The head is broad and short, and the front is flattened. Kiss short. The eyes are large and the interocular septum is wide and flat. Native to the southeastern United States, Mexico and Cuba, it has been colonized by some countries because of its role in the elimination of larvae of Theopheles mosquitoes and other mosquitoes.
Pictured is the small shield snake. Native to Southeast Asia, including India, Myanmar, Vietnam, Thailand, Malaysia and other countries. It inhabits ponds, ponds and streams, and is resistant to dirty, turbid and oxygen-deficient environments.