Invisible, microscopic, dirty…the soil beneath our feet is a home to a little known and often neglected world. However, an estimated 80% of the world’s animal biodiversity lives in soil…and it is extremely diverse! Soil fauna is extraordinarily diverse in color, shape, behavior, survival strategy and much more. Extraordinarily well adapted to their specific environment, they are an invaluable building block to all life on Earth. Nonetheless, the health of the world’s soil and its inhabitants are under threat. If you missed the Science Sandwich on soil biology, read our blog article in French to discover this little-known world and learn how to protect it.