David Attenborough Wildlife Specials

Intrepid underwater cameraman Paul Atkins (who filmed the famous killer whale sequence in The Trials of Life) undertakes probably the most dangerous job of his life: filming an intelligent hunter who is every bit as remarkable as the creature of fiction.

Taking natural-world filmmaking to another level, this award-winning team of director and cameraman employs remote-control buggy-cameras, buried periscopes and state-of-the-art night vision technology to truly enter the lion's den. When a lion charges, the viewers charge with it, when it rests, we lie alongside. In what is a new achievement for lion specialists, the programme is able to examine the fragile alliances between pride males and their relationships with neighbouring rivals.

More famous for having a short temper and a deadly right hook, the grizzly bear is in fact one of the world's most successful carnivorous animals. Grizzlies can survive the extremes of famine and temperature in places as diverse as the Canadian arctic and the Gobi desert. This film shows that they have stealth in ambush, deftness in tree-climbing and a spectacular ability to catch salmon. Grizzly combines beauty with drama, revealing bear behaviour to be remarkably inventive.

One of the most successful species on earth is also one of the least documented. Miniaturised cameras reveal the snakes' world for the first time from their point of view. Head-mounted cameras capture gripping images of the world's most dangerous snakes hunting and overcoming their prey. Using high-speed photography, x-ray imaging and state-of-the-art computer graphics, this is the most ambitious look at snakes attempted in television.

The sensational 'Bouldercam' that took us to within a whisker of lions in Spy in the Den is back to apply its revolutionary brand of photography to the African Elephant. Like its predecessor, Elephants is an action-packed ride full of natural humour. It is a powerful and engaging story that follows the progress of young animals as they learn the skills that prepare them for adult life. The intimacy of 'Bouldercam's images reveals the subtleties of elephant life in a completely new way.

Experience what it is like to be a shark. State-of-the-art 3D graphics transport you into the body of a super-predator, to take on powers and intelligence beyond your wildest imagination. With Shark-cam as your eyes, you are taken where no diver dares to go - alongside the most dangerous sharks in the world. You are enveloped in the madness of feeding frenzies, and accompany packs of sharks on the chase. You survive only as long as your disguise holds out.