SCIENCE

Why Trains Crash

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Why Trains Crash

Can new crash prevention technology help us avoid deadly train accidents?

Spy in the Wild: Bad Behavior

Spy in the Wild: Bad Behavior

Spy Monkey is caught between crossfires as real monkeys fight over beach bar alcohol. Spy Egret is also a waterhole victim when elephants throw mud everywhere.

Spy in the Wild: Friendship

Spy in the Wild: Friendship

Spy Creatures and their new wild friends rely on each other to look out for predators. A Spy Meerkat babysits meerkat pups while a Spy Cobra pretends to attack the mob. Spy Crocs witness a convenient partnership between real crocodiles and birds.

The Origami Revolution

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The Origami Revolution

Engineers are using origami to design drugs, micro-robots, and future space missions.

City in the Sky: Airborne

City in the Sky: Airborne

We take flight for granted, but on any journey a hidden army of people keep your plane safe. What does it take to keep you safe between takeoff and landing?

Severe Weather: Staying Safe

Severe Weather: Staying Safe

Experts answer viewers' questions about severe weather and how to prepare for storm season.

Spy in the Wild: Intelligence

Spy in the Wild: Intelligence

Our spies disguised as animals observe a gray squirrel stealing Spy Nut, a sea otter cracking open a meal, and an orangutan washing with soap.

Ultimate Cruise Ship

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Ultimate Cruise Ship

Pioneering shipbuilders embark on a milestone of maritime engineering: the Seven Seas Explorer. Decked with the finest gold, marble, and crystal, the cruise ship stretches over two football fields and weighs 54,000 gross tons.

City in the Sky: Departure

City in the Sky: Departure

What does it take to get a million people off the ground and up in the air? Explore the building of the world’s biggest passenger plane, how designers control the flow of passengers through the busiest airport on the planet, and the perils of getting airborne in the coldest city on Earth.

Spy in the Wild: Love

Spy in the Wild: Love

Explore the rarely seen emotions of animals through animatronic cameras disguised as animals. Join the “spycams” as they are accepted into a wild dog pack, witness elephant love, and are mourned by a troop of monkeys.