Yellowstone is home to North America's most iconic wildlife, and every year these animals must survive the Thaw-one of the harshest seasonal changes on Earth when temperatures can swing from minus 40°F in winter to almost 100°F in summer. Learn how animals cope with this range, and witness the impact on individual families of wolves, grizzly bears, beavers, and great gray owls.

Presents two ballet performances by the Alvin Ailey American Dance Theater. Divining: A dance evoking a strong feeling for African tribal ritual set to hauntingly rhythmic drum music. Revelations: Expresses Ailey's intense feelings for his roots in the South. Here is Ailey's vivid "blood memories" of the blues, spirituals, gospel music, ragtime and folk songs as well as the hard life of the Southern black during the Depression. One of two 1986 programs...

The Pacific Ocean covers one third of the Earthb2ss surface, holds half of the worldb2ss water, and hides the deepest place on the planet. It is a place where huge and iconic, rare and dazzling creatures live, and where creatures yet to be discovered lurk. Filmed in cinematic 4K, the program breaks the boundaries between land and sea to present the Pacific Ocean in a way never seen before.

Take a risky dive into an underwater cave in Mexico to discover the 13,000 year-old skeleton of a prehistoric teenager. Follow forensic clues that reveal intimate details of her life and death, and how her people first ventured into North America.

First permanent European settlement in the United States was founded two generations before the Pilgrims arrived in 1565. America's Untold Story uncovers the story of America's past that never made it into textbooks.

Frontline reporter David Hoffman investigates the alarming rise in hospitals, communities, and across the globe of untreatable infections. Fueled by decades of antibiotic overuse, the crisis has deepened as major drug companies have abandoned the development of new antibiotics. Without swift action, the miracle age of antibiotics could be coming to an end.

Travel back in time, from the Arctic Ocean to Pacific tide pools, with a pioneering group of scientists who make surprising discoveries that transform human understanding of nature and ecology.

Special features.

"Traces the journey to freedom taken by countless slaves, showing how they were guided, protected and pursued along the way. The extraordinary story is told through historical documents, visits to important sites, interviews with the descendants of noted abolitionists and commentary from experts"--Container.

Alice Roberts follows an entire year of British archaeology, joining up the results of digs and investigations. The results are astonishing, and sometimes disturbing.