Though fresh water comprises only three percent of all the water in the world, it is what makes life on the land possible. Discover the diverse world of lakes and rivers and explore how the simplest forms of life such as light-trapping plankton pass on energy to more complex forms of life such as tadpoles and fish. Author Philip Johansson shows how all living things, from algae to river otters, are connected in this freshwater biome.
