Missouri Botanical Garden
Missouri Botanical Garden: Freshwater Ecosystems
At this site from the Missouri Botanical Garden, you can learn about the wide variety of plant and animal life in or around fresh water ecosystems. Click on the links to "wetlands," "Ponds and Lakes," or "Rivers and Streams" to view...
Missouri Botanical Garden
Missouri Botanical Garden: How the Ocean Refreshes Itself
Watch the animated illustrations to see how the nutrients at the bottom of the ocean get circulated to the top. This upwelling is necessary in order to maintain a healthy ocean.