Earth's ecosystems

From the coral reefs and lagoons to salt marshes and estuaries, full-color spreads highlight the key features of the world s largest ecosystems.

From the Nile River in Africa to the Great Lakes of North America, full-color spreads highlight the key features of the world s freshwaters.

From evergreens and shrubs to lichens and moss, full-color spreads highlight the key features of these lush natural environments.

From the Mojave to the Sahara and everything in between, full-color spreads highlight the key features of these dry regions that cover a quarter of Earth's surface.