Alex Low

From polar bears in the arctic tundra to black bears in the Northern Rockies, you'll see some of the most spectacular footage ever shot of these enterprising omnivores. Catch salmon with a group of hungry grizzlies on the McNeil River in Alaska. Crawl inside a den with a mother black bear and her cubs. Learn about the challenges facing each of these species as their habitat diminishes.

12,000 feet down, life is erupting. Alvin, a deep-sea mechanized probe, makes a voyage some 12,000 feet underwater to explore the Azores, a constantly-erupting volcanic rift between Europe and North America.

Mark Twain's America interweaves the life and times of Mark Twain with the lives of current day enthusiasts who revel in the inventions and way of life of the 19th century. Utilizing archival stereo-optic photos, powerful images from the past seemingly come alive in a larger-than-life presentation. Archival photos representative of Twain and what he saw and experienced in his time are juxtaposed against scenes of actual present day recreations of that era.