Planeta Ziemia Odcinek 1: From Pole To Pole

The lives of animals and plants are dominated by the sun and fresh water which trigger seasonal journeys. The latest technology and aerial photography enable the Planet Earth team to track some of the greatest mass migrations. In the Arctic spring, a mother polar bear and cubs emerge from their winter den to cross the frozen sea before it melts. Further south, time-lapse cameras capture the annual transformation created by the Okavango floods.