Soil invertebrates make up diverse communities living in soil pores and on the soil surface, digging burrows and tunnels, processing organic matter and interacting with microbes.Soil is also a habitat of growing concern as many human activities cause soil degradation.This book documents the evolutionary history of soil invertebrates and their multitude of adaptations.Soil invertebrates live in a twilight zone: some have gone down to seek stability, constancy and rest, others have gone up and faced environmental variation, heat, cold and activity. And it all happens in a few decimetres, millimetres sometimes.Check out the wonderful life below ground in this book.