Takes you on a twisting journey down the great rivers of the world, pausing to visit the thriving realm of freshwater ponds. Travel upstream to find civilization's source - then down again to see the key to our very survival.

Investigates the double life of creatures that live both on land and in water. Leap into the fascinating world of frogs, toads, and salamanders, and get a close-up look at the amazing variety of colors, shapes, and sizes in the amphibian family.