Microfauna refers to tiny, often microscopic organisms that inhabit various environments, including soil, water, and decaying organic matter. These organisms include protozoa, nematodes, and small rotifers, playing crucial roles in nutrient cycling and soil health. They help decompose organic material, making nutrients available for plants and other organisms. These small creatures are essential for maintaining ecosystem balance. Microfauna contribute to the food web, serving as prey for larger organisms like microbivores. Their presence indicates environmental health, as they are sensitive to changes in habitat conditions, making them valuable indicators for ecological studies.