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.

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.

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.

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.

Sir David Attenborough narrates this critically acclaimed series that dives deep into the marine environment of Planet Earth. Although two-thirds of the world's surface is covered with water, scientists know less about the oceans than they do about the surface of the moon. This limited series travels from various coasts to the poles to examine watery denizens ranging from the gigantic blue whale to microscopic coral polyps.

David Attenborough investigates the evolution of nature's flight in this documentary series. Using 3D macroscopic and high-speed filming techniques, the show captures flying mammals, reptiles and insects, as well as birds from all over the world. Attenborough travels from Scotland to Borneo to find the extraordinary species gracing the skies. Created by the award-winning team behind "Natural History Museum Alive" and "Flying Monsters," this series utilizes the latest technology to delve deeper into the animal kingdom to present the natural world's engineering and aeronautics in action.

Sir David Attenborough takes viewers deep into the world of bugs. Pioneering macroscopic techniques allow Attenborough to explore in unparalleled detail the intricate, sophisticated behaviors of fascinating creatures and the complexity of the environments they build and inhabit in a world normally hidden from the human eye. Each episode explores a different aspect of the little-known lives of insects, from the deceptive defensive mechanisms harbored by spiders and scorpions to the creation of colonies and how social arrangements develop.