Freshwater biomes are communities of plants and animals associated with freshwater habitats. They are a vital part of planet Earth’s ecosystems and we rely on them in many ways. Over 40% of all fish can be found in freshwater biomes, along with many species of reptiles, amphibians, birds and mammals. They are also home to a huge variety of plants, including some that float on the water’s surface. Read about why freshwater biomes are so important to the environment and why they are under threat.