(Airs Sunday, July 4) Join spider expert Martin Nicholas, a mild-mannered water treatment engineer by day, as he tours the world in search of some of the most amazing arachnids.

Beneath Antarctica's frozen seas lies one of Earth's most stable and vibrant ecosystems -- and one of its most enchanting realms. Visit a fantastic world hidden "Under Antarctic Ice."

More than 15 years ago, Martyn Colbeck began to document the lives of African elephants. He has grown close to elephant matriarch, Echo, and her close-knit family.

NATURE explores the unusual problems created as the struggle to give Asian elephants a home is fought worldwide.

(Airs Sunday, July 5) Africa's lion population appears to be declining at an alarming rate.

(Airs Sunday, June 6) Scientists have discovered that natural poisons and venoms contain chemicals that can be used to create drugs for treating everything from chronic pain to cancer.

There are not many people in the world who know more about snakes and snake venom than Bill Haast does. Haast has spent more than 50 years working with snakes.

(Airs Sunday, August 15) Hawaii is a place of idyllic beauty. But it is also a land of volcanic fury, raging mountaintop blizzards, dangerous rockslides, monster waves, and even tsunamis.

(Airs Sunday, May 30) Along her 9,000-mile voyage to nest, our loggerhead tour guide encounters hammerhead sharks, deep ocean tempests, and fishing nets.

Once the home of a notorious Soviet prison camp, the isolated peninsula of Kamchatka remains a haven for one of Earth's last giants, the grizzly bear.