Segments 7 through 9 of the extraordinary BBC 11-part nature series. 40 camera teams were shooting at over 200 different locations all over the world for more than 5 years to get the pictures seen in the series. Each segment is followed by a sequence investigating the techniques and challenges of wildlife photography within that segment.

Great plains: On these immense wildernesses, from the baking savannahs of Africa to the frozen tundra of the Arctic, are found the greatest gatherings of wildlife on Earth: but close on the heels of gazelles, caribou or wildebeest come an array of plains predators --- eagles, wolves and lions.

Jungles: With little seasonality and a longer growing period, jungles are the most productive places on Earth, but surviving in the jungle is far from easy. Using state-of-the-art tracking shots and stunning aerials the film moves along the dark forest floor, up through the layers of vegetation and across the canopy.

Shallow seas: Follows a humpback whale mother and calf on an epic journey through the shallow seas of our planet. From tropical coral paradises, where the new-born calf takes his first breaths, to the storm-ravaged icy polar seas, the whales' great feeding grounds, are revealed as seas of great contrast and surprise.