A recent study has found that soil is home to 59% of all life on Earth, from an insect feeding on the soil surface to a tiny microbe nestled in a soil pore. This discovery crowns soil as the most biodiverse habitat on the planet.
The paper estimates that around 2 million species of arthropod (think insects and spiders) inhabit the soil – some 30% of all known arthropod species. There are far fewer species of soil specialists such as enchytraeidae (resembling mini earthworms) and oligochaeta (worms), with only 770 and 6,000 species respectively. That might not seem like a lot, but it still represents around 98% and 63% of these animal groups.
