1x1 - Mountains

March 6, 2018

Only the hardiest of beasts survive in Britain's mountains and uplands, including the golden eagle and its prey the mountain hare, plus 400,000 red deer and flamboyant black grouse.

1x2 - Forests

March 13, 2018

Britain's forests contain majestic trees, some of them thousands of years old. Behind the leafy veil, there are booming populations of previously rare wild boar and goshawks.

1x3 - Coasts

March 20, 2018

From sandy beaches to soaring cliffs, Britain's coastlines are one of nature's wildest habitats, where hardy creatures are battling to survive.

1x4 - Rivers

March 27, 2018

With more than 6,000 rivers criss-crossing our land, their denizens often go unnoticed. Solid bones and high oxygen levels mean a dipper bird can dive underwater for 30 seconds.

1x5 - Water Worlds

April 3, 2018

In the varied water worlds all kinds of wildlife thrive, from slithering grass snakes to delicate reed warblers.

1x6 - Countryside

April 10, 2018

Evidence of how the countryside has changed more in the last 100 years than in the previous two thousand. Barn owls fight for their territory against kestrels.

1x7 - Islands

April 17, 2018

On North Ronaldsay, one rare breed of sheep can subsist on a diet of only seaweed. In the Shetlands, otters benefit from a current of warm water flowing up from Spain.

1x8 - Cities

April 24, 2018

Hedgehogs have declined in numbers from 30 million to one million in 60 years. Great crested newts enjoy an elaborate courtship in larger ponds.

Hugh Bonneville

Narrator