Soil fauna refers to the diverse community of organisms living in the soil, including insects, worms, fungi, and microorganisms. These creatures play a crucial role in maintaining soil health by breaking down organic matter, recycling nutrients, and improving soil structure. Common examples of soil fauna include earthworms, nematodes, and various microbes. The presence of soil fauna enhances plant growth and supports ecosystems by promoting biodiversity. They help aerate the soil, allowing water and air to penetrate more easily, which benefits plant roots. Overall, soil fauna are essential for sustainable agriculture and environmental balance.