A long, snakelike creature moves slowly through the waters of a muddy river in the Amazon rain forest. It's an electric eel on the hunt. The hungry creature swims closer to a large piranha. As it nears its prey, the predatory eel releases a burst of electricity. Six hundred volts of power enter the fish's body, stunning the animal so the hungry eel can gobble up its electrifying meal Filled with information perfectly suited to the abilities and interests...