Two-thirds of all species live in the soil: Study

Soils are the most species-rich ecosystems globally, with two-thirds of all species residing in them, finds a new study. Interestingly, this figure is more than double that of previous estimates. Fungi attribute to the highest proportion of species in the soil at 90%, followed by plants and their roots at 86%, and earthworms and mollusks, such as snails, at 20%.