Microbial biogeography is the study of microbes and their distribution across different places. Microbes are tiny living things, like bacteria, fungi, and protists, that are too small to see with the naked eye. Microbial biogeography is about understanding where different kinds of microbes can be found throughout the world, and how those places change over time. Being able to track microbial distributions can help scientists study the environment, and can aid in the fight against diseases or other problems caused by microbes.