Underwater cameraman Paul Atkins films a great white shark.
Watch the lives and toils of the arctic polar bear.
David Attenborough narrates an unusual documentary look at the behaviour and intelligence of an African elephant herd.
One of the most successful species on the planet is also one of the least documented. Miniaturized cameras show the snakes' world for the first time from their point of view.
The alliances between rival pride males; fights, pride take-overs and infanticide.