National Geographic Explorer Season 22 Episodes

Episode 1

Ultimate Crocodile

Wed, Sep 12, 2007

Explorer looks at crocodiles in order to explain what makes them such powerful predators.

Episode 2

Science of Babies

Wed, Sep 19, 2007

National Geographic looks at the first twelve months of a baby's life. It examines human development in regard to facial recognition, language learning, walking, and perception.

Episode 3

Mammoth Mystery

Sun, Oct 7, 200745 mins

Scientists have long debated one of the greatest mysteries of science: What caused the mass extinction of mammoths around 13,000 years ago? A look at science in the making, National Geographic follows a team as they assemble one theory for what might have happened to the mammoths, which reigned over the landscapes of North America for more than 1 million years. Could the clues point to the biggest cosmic impact humans have ever witnessed?

Episode 4

Heroin Crisis

Tue, Oct 23, 200745 mins

Heroin is one of the most addictive drugs on earth. Stronger, purer and easier to get than ever before. The newest forms of heroin can be snorted or smoked--rather than injected--attracting millions of new users. National Geographic investigates how the war in Afghanistan has inadvertently unleashed a deluge of heroin, feeding addicts from Kabul to Europe to America's heartland.

Episode 5

Inside the Body Trade

Sun, Nov 11, 200745 mins

National Geographic examines organ transplantation and the growing worldwide black market organ trade.

Episode 6

Ultimate Viper

Wed, Nov 21, 2007

Episode 7

China's Secret Mummies

Sun, Dec 2, 2007

Episode 8

The Last Christians of Bethlehem

Sun, Dec 9, 2007

Episode 9

Science of Evil

Wed, Jan 9, 200845 mins

National Geographic investigates the psychological and neurobiological basis for evil.

Episode 10

Inside Sumo

Wed, Jan 30, 2008

Episode 11

Testosterone Factor

Wed, Feb 13, 200845 mins

National Geographic gets to the science behind what makes a man manly -- his Testosterone Factor. It's one of the most important and powerful hormones in a man's body, but how does it really impact the men in your life? Explorer presents the latest insights from leading researchers in psychology, biology and anthropology to reveal testosterone's fascinating influence on strength, status, success and even commitment.

Episode 12

Alaska's Last Oil

Wed, Mar 12, 200846 mins

Nowhere is the battle to find oil more intense than in Alaska - source of nearly 15% of America's domestic production, and home to the nation's largest wildlife preserve, the Arctic National Wildlife Refuge, where companies are pushing to drill. National Geographic travels back millions of years to see how oil was created, and looks to the future to ask how far we'll go to find every last barrel and at what cost.

Episode 13

Border Wars

Wed, Mar 26, 2008

Episode 14

Death of the Iceman

Tue, Apr 1, 2008

A forensic breakthrough leads scientists back to the scene of a 5,000 year old murder on a glacier high in the European Alps. As three possible motives emerge, the story of the Iceman's violent death illuminates the origins of conflict in the Copper Age.

Episode 15

Shark SuperHighway

Tue, Apr 8, 2008

National Geographic examines the evolution and behavior of the hammerhead shark and follows a team of scientists that are attempting to track their migratory patterns.

Episode 16

Finding Anastasia

Tue, Apr 29, 2008

Episode 17

Tunnel to a Lost World

Tue, Jun 3, 200860 mins

The discovery of the biggest maritime harbor in the ancient world has set about a $3billion dollar battle between modernizers and archaeologists. Istanbul was the capital of four Empires for two and a half thousand years. Straddling Europe and Asia across the Bosporus channel, this ancient city was uniquely placed to control the passage of people and goods from all over Europe. And today it's no different. The Bosporus remains one of the busiest commuter and cargo shipping lanes in the world. But passage across the narrow Strait is slow. The new tunnel and connecting rail-line is the 21st Century answer. But in building the future, the past has come back to haunt it. During excavation a few yards below ground level engineers discovered the largest harbor of ancient times - the 4th Century Theodosus' Roman harbor. The recovery of more than thirty Byzantine ships makes this the biggest maritime find in history and the site is the largest archaeological dig in the world. Five hundred people working shifts six days a week are trying to get the Tunnel project back on schedule, but they keep uncovering more and more incredible artifacts. Now it's an incredible race against time before the engineers move back in.

Episode 18

Mystery of the Mummy Murders

Wed, Jun 4, 2008

Episode 19

Science of Cats

Tue, Jun 10, 200849 mins

Episode 20

Gorilla Murders

Tue, Jul 1, 200850 mins

Explorer investigates the murder of six gorillas in Virunga National Park and reveals a very real conflict between conservationists and business interests.

Episode 21

Zoo Tiger Escape

Sun, Aug 10, 200850 mins

On Christmas Day 2007, a 243-pound Siberian tiger named Tatiana escaped from her open-air enclosure at the San Francisco Zoo and mauled three young men. Before long, one 17-year-old boy and the 4-year-old tigress lay dead. Zoo Tiger Escape investigates the how and why of what really happened that night-from the possible motivational factors that led the tiger to escape, to the complex evolution of enclosure design.