In the abyss of the ocean lies a world of mysteries and sunken treasures. But the laws governing the seas are not enough to end the debate over the right to claim possession of these Roman ships, Spanish galleons, and centuries-old luxury ropemakers. Follow Dr. Robert Ballard and his team of specialists as they embark on a remarkable underwater expedition in the Mediterranean Sea to discover and study ancient shipwrecks.

From National Geographic comes this 52 minute documentary (No 27, in the 'Journeys with Wildlife' collection) which takes a look at the animal life in the bleak Eastern Canadian Artic. Adam Ravetch moved from the sunny environs of Southern California to the frigid ice sheet of this inhospitable land ten years ago and was intrigued by what he saw there. At first glance the area seems to be a place of frozen desolation, however here amidst the ice floes, walruses live an active existence, battling for survival with the elements and against predators such as polar bears. Ravetch ventures into the Artic at the height of the walrus birthing season, braving the cold and extreme conditions for a rare look into the lives of these tusked giants.

The story of Darwin's finches and their relationship with other creatures of the Galapagos; tracing their evolution, how the islands were formed and how it's main inhabitants got there.

National Geographic Wildlife Filmmakers Go Eye-to-Eye with Danger! They swim with sharks, confront venomous snakes, and stalk hungry lions. They're National Geographic filmmakers, and for these remarkable adventurers, capturing unforgettable footage in the wild is not just a job, it's a way of life. Join a cinematographer in the rain forest canopy as he goes to incredible lengths - and heights - to film the world's most powerful bird of prey. Witness the frustration of a filmmaker who just misses the scene-stealing shot of jackal pups greeting their mother in the Serengeti, and feel the exhilaration when he finally captures the event to perfection. Meet the talented professionals who go behind the camera every day and sometimes risk their lives to bring us extraordinary images of nature's most amazing creatures.