The millions of species on land, in freshwater and in the ocean have evolved over millennia and form the web of life that sustains the planet.
The millions of species on land, in freshwater and in the ocean have evolved over millennia and form the web of life that sustains the planet. Species and their populations are the building blocks of ecosystems, individually and collectively securing the conditions for life. They provide food, medicine and raw materials. They are the basis of soil formation, decomposition, water filtration and flow, pollination, pest control and climate regulation. They are the primary source of income and resources for hundreds of millions of people around the globe.