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Using state of the art filming technology, Nature's Great Events on ³ÉÈË¿ìÊÖ One captures the Earth's most dramatic and epic wildlife spectacles and the intimate stories of the animals caught up in them.

From the flooding of the Okavango Delta, in Africa, to the great summer melt of ice in the Arctic and the massive annual bloom of plankton in the northern Pacific Ocean, each of the six programmes features a different event set in one of the world's most iconic wildernesses.

The series is narrated by David Attenborough. The first episode is on Wednesday 11 February 2009, 9.00-10.00pm, ³ÉÈË¿ìÊÖ One.

The characters include tiny grizzly bear cubs emerging from their den in snow-covered mountains; baby elephants struggling to survive against drought and lion attack in Africa; humpback whales hunting as a team; the world's largest concentration of dolphins and sharks gathering off the coast of South Africa; and polar bear families navigating their precarious way on ever-thinning ice.

The world-renowned ³ÉÈË¿ìÊÖ Natural History Unit uses sophisticated high definition cameras, cutting-edge aerial, underwater and ultra slow-motion filming techniques to capture in intimate detail some of the audience's best-loved wildlife, as their lives become entwined with these dramatic events.

As the Earth is rapidly changing, we can no longer take these great natural events for granted. By filming the events and their fluctuations this series takes the pulse of the planet.

For more information visit: bbc.co.uk/naturesgreatevents.

A ³ÉÈË¿ìÊÖ/Discovery Channel/Wanda co-production. The series producer is Karen Bass and the executive producer is Brian Leith.

Nature's Great Events is also being simulcast on the ³ÉÈË¿ìÊÖ HD channel – the ³ÉÈË¿ìÊÖ's High Definition channel available through Freesat, Sky and Virgin Media. With up to five times more detail than standard definition television, HD gives you exceptionally vivid colours and crisp pictures to make Nature's Great Events a truly cinematic TV experience.

LS2/BR