It means that hamsters are affected by the environment, and very few of them are gene icons.

These have something to do with the environment: for example, bathing in sand and food. But it could also be a genetic mutation.

There is also a very common phenomenon, the hair turns white, commonly known as winter white.

In winter, with the sunshine, half of the wild three-line color will turn into white, which is close to the silver fox color. In winter, the white color will change not because of the season and climate, but because of the short illumination time in winter, so it will change, and the artificial control of illumination time will change.

Winter white is just a phenomenon, and all kinds of third-line mice may change, not varieties.