The first programme shows how sharks are the ocean's great predators, living in every ocean and hunting in every way. Blacktip sharks hunt in huge packs and herd fish into baitballs, tasselled wobbegongs are ambush hunters, Greenland sharks live under the arctic ice, and whitetip reef sharks are the masters of hunting at night. The finale shows the great white in its hunt for fur seals off the coast of South Africa.
Monterey Bay on California's coast is one of the most diverse marine ecosystems in the world, its giant kelp forest bursting with life, from microscopic plankton to visiting ocean giants. The secret key to success in such a busy microworld is balance. Steve Backshall guides us through the unique geography of the bay and introduces some of its key characters in a quest to find the one species that keeps life in the kelp forest in check.
The episode begins in the South American rainforest whose rich variety of life forms is used to illustrate the sheer number of different species. Since many are dependent on others for food or means of reproduction, David Attenborough argues that they couldn't all have appeared at once. He sets out to discover which came first, and the reasons for such diversity. He starts by explaining the theories of Charles Darwin and the process of natural selection, using the giant tortoises of the Galapagos Islands (where Darwin voyaged on HMS Beagle) as an example. Fossils provide evidence of the earliest life, and Attenborough travels a vertical mile into the Grand Canyon in search of them.
Sir David Attenborough gives his unique perspective on over half a century of innovation in wildlife filmmaking. He revisits key places and events in his filming career, reminisces with his old photos and reflects on memorable wildlife footage - including him catching a komodo dragon and swimming with dolphins. Returning to his old haunts in Borneo he recalls the challenges of filming in a bat cave and shows how with modern technology we can now see in the dark.
David Attenborough narrates this astonishing story of a wild cheetah family. Known for being fast, captivating and extremely elusive, a new insight into their remarkable lives is offered by cameraman Kim Wolhuter. For nearly two years, he walked alongside a wild cheetah mother and her young family to unravel in intimate detail what it takes to turn tiny cubs into accomplished predators.