The lifespan of black nematodes is relatively short, only about 2 to 3 years. The black line rat has a slender body, and it has a slender tail compared to the short and small tails of other hamsters. At the same time, the color of black nematodes is generally dark brown. With a small slender tail and dark brown fur, it will inevitably make people think of elegant, one of the four evils of mice.

In fact, although the black line mouse and the mouse have many similarities , but they are still different. If you look closely, you will find that the face of the black rat is rounder than that of the mouse, and the adult black rat is smaller than the adult rat. Second, black nematodes generally live in the north, while mice are found all over China.

Although the black rat is not welcomed by the majority of pet lovers, in the field of biological research, the black rat has been widely used in animal experiments as early as the last century, and it has also made great achievements for human beings. contribute. What is even more reassuring is that with the improvement of the environment in recent years, the population of wild black nematodes is increasing.