Rivers and lakes are storehouses of fresh water. They are also important
habitats for fishes, birds, and mammals. It is no wonder that rivers have been
our lifelines since ancient times, playing an important role in the growth of
civilizations. Take a cruise on the world's greatest rivers and learn about the
deepest and largest lakes. Discover the origins of rivers, their stages, the
life they support, and the benefits they provide us. Also learn how these
precious water bodies are threatened by human activities.