6From roaring waterfalls and crashing waves to gentle rain and billowing clouds, water pervades our planet's majestic biosphere. It is easy to take for granted. But this ever-present substance is amazingly fit in a myriad of ways to sustain life on Earth, especially human life. Its unique properties allow it to fill many roles throughout the biological world, from forming the matrix of our cells, to regulating the temperature of our planet. In The Wonder of Water, biologist Michael Denton delves deep into this grand, untold story and explores how water is specially equipped to allow life to flourish on our blue planet. Find more information on The Privileged Species book series and companion documentaries at www.WonderofWater.org.