
Roaring with Pride
ALERT seeks to reintroduce captive bred lions to the wild.

ALERT seeks to reintroduce captive bred lions to the wild.

A groundbreaking program attempts to return Africa's lion population back to its former glory.

How historical icons like Alexander the Great, Cleopatra and Vlad III died.

The world's oceans hold secrets to discover, from the ruins of Pompeii to the Santa Maria.

A look at China's immense historical records, which include data about warfare, traditions and more.

A look at the Dark Age's pagan Vikings, forgers of crucible steel and the Ulfberht Sword.

The Swazi man travels to Tanzania on an old-school safari to hunt the dangerous Cape buffalo. He also witnesses the devastating results of elephant poaching.

This episode sees Swazi man Davey Hughes hit the trails in the majestic Yukon - with the elusive moose as his target.

Davey is at the panhandle of Alaska in search of the Alaskan wolf, travelling by boat with Jim Boyce and Speedy, a terrier who thinks he's a wolf. And while on Baranof Island, Davey tests himself against a black bear - armed with only a spear.

Watch as Davey drops in at Kodiak Island off Alaska, where there are silver salmon to fish, whales to photograph, mountain goat to hunt, and a chance to get up close to a huge Kodiak brown bear.

Humpback whales have come back from the brink of extinction, but they are difficult to approach.

French Polynesia's great hammerhead sharks are extraordinarily shy animals.

Some of the most inhospitable and extreme places in the solar system.

How rockets are made; how they blast off and make their way through the Earth's atmosphere.

Outer space; sending tourists into space; Virgin Galactic; the International Space Station.

The moon; teams competing for the Google Lunar X Prize; returning to the moon.

Creating and testing high-altitude balloons to survive the rigors of near space.

The jaguar's spots; how a bee sting works; salmon migrate thousands of miles to spawn.

The lifecycle of the butterfly; how birds fly; how a Venus flytrap catches its prey.

Animals of Africa: zebras; giraffes; hyenas.