Wetland environments are any flooded or water-soaked area with a covering of water plants. A wetland is classified by the plant species that live in it. What types of plants grow depend on how fast the water in the wetland flows. Some wetlands are like a swiftly flowing river, while others are like a thick sponge. The world’s major wetlands are located in southern Africa, North America, central South America, and Asia. The largest wetlands in the world are the bogs of the Siberian lowlands in Russia. They cover 600,000km2. That’s three times the size of Great Britain. All the world’s wetlands, even the large Siberian bogs, are endangered environments.

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