Watch Sunrise Earth online: Episode 16 Everglades River of Grass

Pahayokee, Everglade National Park, Florida. Savannah-like open sawgrass prairie stretches as far as the eye can see, punctuated by the occasional cypress tree. Beneath the apparent prairie, however, is a wide river flowing at a speed of more than one mile per hour. It's Marjorie Stoneham Douglas' famous "River of Grass." In fact this exact Pahayokee platform was this writer's most frequented Everglade destination. To better observe the workings of the underwater world, we submerge a camera and peer directly into the lives of mosquito fish and the enriching mat-like algae known as periphyton. Insects traverse the razor sharp strands of grass as the weather changes.

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