Viewers will travel from the Brazilian rainforest to Norway's Svalbard archipelago, discovering how each fragile habitat is connected and why they are all essential for life to thrive on this planet.

On the unforgiving frontier of climate change, polar bears, walruses, seals and penguins find their icy Edens in peril.

Jungles and rainforests are home to an incredible variety of species like preening birds, intelligent orangutans and remarkably ambitious ants.