In grassland or desert habitats, predators have an easy time spotting prey, but the prey can also spot predators.

Following blue whales, sharks, sea lions, frigate birds, dolphins and albatrosses.

Following tigers, harpy eagles, chimpanzees, army ants and other predators.

The only option for the Arctic's top predators is to continually adapt.

The contests between predators and prey are the most dramatic events in nature.

Predators from air, land and sea come together on the coast; coasts are ever-changing; since opportunities do not last long, hunters must race against time.

Detailed look at the remarkable strategies the planet's top hunters use to succeed and the huge effort they must put forth to survive.

Scientists attempt to preserve the world's top predators, combining natural history footage with human drama.

The planet is teeming with myriad life forms, both plant and animal, all interlocked in a struggle for survival. As time goes on, some living things are forced to adapt and change to survive. This series chronicles some of the most unusual, if not downright bizarre, behaviors that living organisms have devised to keep their species alive. The 11-episode series was four years in the making, taking camera crews to every continent and habitat.

David Attenborough journeys across the polar regions of our planet.

From the frozen tundra in the north to the dry forests of the equator, Sir David Attenborough narrates a compelling view of the planet. "Planet Earth" was the first natural history documentary to be filmed in high definition, and now a decade later improved technology has made it possible to capture further details, from elusive animal behaviors to previously inaccessible remote landscapes. In addition to exploring the wilderness, the series examines urban dwellings, focusing on animals that have adapted to city life.

A follow-up to the 2001 award-winning show "The Blue Planet," this natural history series sees Sir David Attenborough return as narrator and host. A breathtaking exploration of the world's vast oceans, hourlong episodes capture animals and other living organisms in their natural habitat, presenting viewers with a fascinating insight into what life is like underwater. From tropical seas to the harsh conditions of the Arctic, the makers of "Blue Planet II" use modern filming equipment and techniques to shine a light on areas of the planet that humans have never seen before.

"Dynasties" is a documentary by Sir David Attenborough as he goes on a journey behind some of the most celebrated and endangered animals on the planet. Follow the stories of penguins, chimpanzees, lions, painted wolves, and tigers. Each of these animals is locked in a heroic struggle against the forces of nature and their rivals -- they face harsh environmental conditions, dangerous predators, and even the greatest threat: humans. They actively seek to fight for their survival and the survival of their families -- their dynasties.

The nature series "Life Story," a collaboration between BBC and The Open University, shows how animals try to overcome the challenges they face throughout their lives to eventually continue their bloodlines by having offspring. The show, narrated by Sir David Attenborough, aims to give viewers an idea of what it is like for animals who face difficult choices in nature. Episodes document the journey of animals surviving the hazards of being young through learning how to survive as an adult, climbing the social ladder, getting a mate and becoming a parent.

Whenever documentary filmmakers at Discovery Channel and the BBC unite for a project, stellar television seems to follow. "Planet Earth: Africa" stems from this collaboration, as did the breakthrough natural history series "Life" in 2009. David Attenborough narrated that one, and he's back to take viewers on a journey through the vast and diverse continent of Africa. Four years in the making, during which more than 2,000 hours of video were shot, the program consists of six hour-long episodes that feature an array of never-before-filmed species, animal behaviors and previously unknown places. Cameras uncover the extreme dangers of the Kalahari, the dense forests and snow-capped peaks of the Savannah, the dynamic Congo rainforest, the ever-changing climate of the Cape and the massive and parched Sahara.

The most dramatic wildlife spectacles on the planet.

The planet and its wildlife.