Nature documentary. The cameras follow the moving story of one lion family's struggle to survive until the return of the great migration of wildebeest and zebra.
Documentary series. The cameras follow whales and sea lions alike as they journey to the seas off Alaska to feed on an explosion of plant life, the plankton bloom.
Nature documentary looking at a phenomenon which occurs each winter, when a mighty army of predators hunt down the billions of sardines along the South African coast.
Nature documentary looking at the annual return of hundreds of millions of salmon from the Pacific Ocean to the mountain streams where they were born.
Nature series. The summer melt of Arctic ice, opening up nearly three million square miles of ocean and land, provides opportunities for millions of animals.
Documentary series. The great flood in the Okavango turns 4,000 square miles of arid plains into a beautiful wetland, attracting elephants, buffalo and birds.