A natural history of Antarctica presented by Sir David Attenborough. It's summer in Antarctica, and with 24-hour daylight the race to breed is on as two million fur seals crowd the beaches of South Georgia. When the pups are born, ferocious bulls attack any intruders who challenge their females. Meanwhile, chinstrap penguins cross glacial streams and climb near vertical cliffs to feed their chicks as formidable leopard seals lurk.

A natural history of Antarctica presented by Sir David Attenborough. During the Antarctic winter, conditions are so extreme that most animal life deserts the region. The few exceptions include emperor penguins,which huddle together as storms rage, and Weddell seals, which maintain holes in the ice for access to an underwater world in which fish survive by having natural antifreeze in their blood.