The moon wasn't like the novels where there were no humans but many monsters. Some unknown biological species might appear in some areas on the moon. The environment on the moon is extremely cold and dry, lacking oxygen and food resources on Earth, so these creatures may have characteristics that adapt to this environment. In addition, there were some craters and volcanic craters on the moon. These environments might also give birth to some special creatures. However, it should be noted that due to our limited understanding of the creatures and environment on the moon, these descriptions are only guesses and imaginations, and we can't be sure if they really exist.