Animals are germ-free
In our world there is a huge variety of animals that inhabit different parts of the planet. However, few people know that among them there are those who do not have microbes in their bodies. These animals are called germ-free or sterile.
Why don't these animals have germs? The thing is that they live in conditions where microorganisms cannot survive. For example, such animals live in deep ocean grottoes, where there is no access to light and oxygen. In addition, they may have a strong immune system that destroys all attempts by germs to enter the body.
Among such animals, many species can be distinguished, from bacteria to large mammals. For example, among invertebrate, germ-free animals, there are many species of sea sponges that live on the ocean floor. Among vertebrates, some amphibians can be distinguished, such as amphibians of the genus Xenopus, which are used in scientific research due to their sterility.
Germ-free animals are an interesting object of study for science. Their research could help combat infectious diseases and develop new treatments. In addition, the study of germ-free animals can answer questions about the origin of life on Earth and its possible forms in other parts of the Universe.
In conclusion, we can say that germ-free animals are a unique phenomenon in the animal world. Their study can bring many interesting results and help in solving many scientific problems.