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Table of Contents »
Greenland's ice is melting.
Caves of Faith
Near the Silk Road oasis, a time capsule of ancient art.
Parting the Waters
The Middle East could be a model for averting water wars.
A three-year drought has reduced water to cities and farms.
Packs are back. Westerners are glad, scared, and howling mad.
Peru's Puzzling Lines
The ancient Nasca lines of Peru shed their secrets.
One Cubic Foot
How much life could you find in one cubic foot?
Humans want to know more about the Congo's ace toolmakers.
See how bionics are changing lives.
Learn about exoplanets and how they are found.
See the strange crocs of the Sahara.
Animal mummies hold intriguing clues to life and death in ancient Egypt.
Trace history on the growth rings of a redwood tree.
Compare an old map with a street grid of present-day New York.
Below Yellowstone, superheated rock rises from within the Earth.
The city's structures have suffered from sea-level rise and sinking.
Art of Deception
Sometimes survival means lying, stealing, or vanishing in place.
Animations, photos, and a time line in this Angkor interactive.
View the milestones of telescope history.
Find out the Native American meanings of U.S. place names.
Learn more about these swimming machines.
Examine the anatomy of a baby mammoth.
Scientists could try to clone a mammoth. Should they?
Death of Lyuba
How was the baby mammoth preserved for 40,000 years?
Read the Universal Declaration of Human Rights.
Suggestions for how to cope with the effects of one too many.
A simulation models the cataclysmic 1908 impact.
Learn what has undermined conservation efforts.
Stages of Stonehenge
Follow Stonehenge's development.
Explore the God Particle
Europe's giant new atom smasher.
Green Life Interactive
Assess the carbon footprint of your household appliances.
Drowning in Mud
See what may have caused the disaster.
Tour of a computer's toxic components.
Closer Look at Dinosaurs
What makes these dinosaurs "bizarre?"
Flight of the Albatross
Explore the physical traits of the albatross.
Track the flights of 16 albatrosses.
Mapping Memory in 3D
See how memories are saved (or lost).
What not to feed your dog-even if it begs.
The Chocolate Chart
How much of each kind of chocolate will harm your dog?
See how emerging biofuels compare.
Swim With Sea Monsters
Monsters of the ancient sea.
Examine the Iceman
Learn about a 5,000-year-old Neolithic hunter.
Jamestown and the Powhatan
America in 1607.
See the impact of another Vesuvius eruption.
Unraveling the mysteries of King Tutankhamun.
Vanishing Sea Ice
Discover the effects of the shrinking ice shelf.
Explore the bottom of the earth.
Relive the Hubble Space Telescope's first 17 years.
50 Highlights of Space Travel
A time line of 50 years of space exploration.
How much do you know about space trash?
Take this quiz and find out if you need more sleep.
Test your knowledge of Hatshepsut.
Blue Whales Quiz
Test your knowledge of blue whales.
See how much you know about carbon emissions.
Burial Customs Quiz
A quiz on burial customs and traditions around the world.
Charles Darwin Quiz
A quiz on Darwin and his voyage on the H.M.S. Beagle.
How much do you know about gold?
The North Pole has captivated generations of explorers.
Test your knowledge of presidential history.
Crystal Giants Quiz
What are crystals and how do they grow so large?
What makes neanderthals different from humans?
Get the dirt on soil.
What's Moscow like today?
Iranian Culture Quiz
Test your knowledge of Iranian culture.
Think you know Stonehenge? Take our quiz.
China Architecture Quiz
What's being built in China?
Chinese Languages and Ethnicity Quiz
What do you know about the Chinese?
Black Pharaohs Quiz
How much do you know about ancient race and ethnicity?
What ideas about dinos are wrong?
Ancient Maya Quiz
Test your knowledge of the ancient Maya.
Sublime Scottish Islands
Many of Scotland's Hebrides islands are still reached by sea.
Deep Southern Caves
Hard-core cavers probe an underworld wilderness.
Path of the Jaguars
See the web of connections between jaguar populations.
See a photo map of the last ones left in America.
See images of this magnificent Canadian wilderness.
My Shot Map of India
Click on our map of India to see images by our readers.
Locations where impactors have hit Earth.
View stunning aerial images.
Your Shot China Map
Tour China through readers' images.
Photo Map: Bitter Waters
See the toll of growth along the Yellow River.
Learn about popular pilgrimage destinations.
Writer Howard Norman shares observations.
Maps of the Pacific
Learn more about the migration of the Lapita.
India's Ancient Art Map
Stunning murals in dim man-made caves.
Tour Decade Volcanoes
Explore the 16 Decade Volcanoes.
Death Valley Map
Tour Death Valley and see more photos.
Latin American Aerials
What a condor's-eye view reveals.
Local Foods Map
America's offbeat and beloved edibles.
Ancient Maya Site Map
Explore 15 key Mayan sites.
The nation's efforts to straddle the fault line.
New Troglobites Map
Explore these strange invertebrates.
International Peace Park.
Visit the Nation's Cemetery.
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