Mya Rose Craig aka Birdgirl on the black browed albatross for Tweet of the Day.
Steve Backshall presents the black-browed albatross.
Liz Bonnin presents brown skua hunting over an Antarctic landscape.
Wildlife cameraman Doug Allan recalls a very close encounter with wandering albatrosses.
The team boards their yacht Pelagic, designed for the glacial ice fields they encounter.
Fierce storms and dense sea ice provide more challenges to the film crew.
With their ship locked in ice, the crew attempt to walk across the frozen Antarctic waters
Life is tough not only for the penguins, but also for the team filming their lives.
The young Gentoo penguins prepare to enter the water for the first time.
Peter Gibbs meets the Penguins of the Falkland Islands.
Peter Gibbs meets the Falkland Islands farmers making a living from sheep and penguins.
Wildlife cameraman John Aitchison watches leopard seals hunting young penguins.
Singing leopard seals and other perils of research in Antarctica.
Brett Westwood examines our complex relations with an ocean icon, the wandering albatross.
Sir David Attenborough presents the wandering albatross of the South Atlantic Ocean.