Life at the Bottom of the Food Chain February 13, 2010

Visitor Center, Fremont. Wetlands microbes are often called "the lungs of the earth." Explore the dynamics of microbial communities in LaRivere Marsh ponds. Join microbiologist Wayne Lanier, PhD for a brief presentation in the Visitor Center; then a microscope hike to LaRiviere Marsh where we will sample and view the most ancient creatures on earth. See how they produce the oxygen we breathe and take up the carbon dioxide we produce. Discover how the tides shape these vital communities. Easy short hiking level. Ages 9-90 years. Call 510-745-8695 for reservations.