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A wealth of plant and animal life.
Clean, abundant water is the essence of life.
Earth's most agriculturally useful habitats.
One of the world's most thrilling habitats.
Shelter for more than half of the world's species.
Life in the extreme.
Populations on the rise.
Producing food for billions.
The Chihuahuan desert in Mexico is one of the most biologically rich and diverse deserts in the world, rivaled only by the Namib-Karoo of southern Africa and the Great Sandy Desert of Australia.
Explorer Mike Fay took an 1,800-mile hike through the redwood forest, seeking its salvation.
When land is stripped bare, it can simply blow away.
How much do you know about the world's threatened oceans?
Discover dunes and dive into seas of sand from Australia to the Middle East and beyond in this gallery dedicated to Earth’s most barren landscapes.
Take a photographic journey through Montana and enter to win a trip!
Find out who takes home the Grand Prize!
Click to learn more about animals and their habitats.
Find a variety of geography lesson plans and activities for all age groups.