Brazilian tortoise, also known as red-eared tortoise, is one of the eight invasive alien species in the world, native to the Mississippi River basin in the United States. 1987 introduced to China. Because of its cheap price and lovely green color, it has become the most common turtle on the market at present.

However, the Brazilian tortoise is an alien invasive species. Many people buy them and put them in natural water, so they don't want to keep them. Some people don't even understand the harm of exotic species. For the purpose of praying for release, buying a large number of Brazilian tortoises for release is actually very harmful to the ontology ecology.

The Brazilian tortoise is a species with wide feeding habits, high reproductive capacity and strong adaptability. This makes it possible for Brazilian tortoises to invade some areas where native tortoises are not distributed. The surviving Brazilian tortoise is an exotic species in the original ecological environment. They appear in an environment without turtles. On the one hand, they will affect the survival of some original fish and shrimp. Without natural enemies, the number of their reproduction may increase rapidly, and the original creatures will not adapt to such a foreign natural enemy. Then the damage to protozoa is enormous, and as an omnivorous species, the Brazilian tortoise will not only destroy fish and shrimp, but also destroy native plants.

In the case of original turtle species, Brazilian turtle has strong adaptability, strong reproduction and strong attack power, which makes it compete with local turtle species in its environment. Brazilian tortoises not only attack native tortoises, but also rob them of food and living space. In such a struggle for existence, it is difficult for native turtles to compete with Brazilian turtles. The number of a species that can be accommodated in an ecosystem is limited, and the emergence of a large number of any similar species will inevitably reduce the output of the original species. It's like a small river, where only a thousand turtles can survive at most, so when a large number of Brazilian turtles appear, the number of native turtles will be greatly reduced. After all, the food produced in this river can't support so many turtles.

Therefore, if you choose the Brazilian tortoise, don't release it at will, and don't buy a large number of Brazilian tortoises and put them in natural water for the sake of doing good, because this is not doing good but doing evil.