A silverback mountain gorilla hides behind a thick layer of plants in the Virunga National Park, Democratic Republic of Congo.

Underwater shot from seabed towards the surface with tall kelp plants gently swaying in the water. The sun's rays pierce the water between kelps.

A silverback mountain gorilla chews leaves and picks at other plants in the Virunga National Park, Democratic Republic of Congo.

Underwater tracking shot in a kelp forest. Camera travels past tall kelp plants which sway gently in the water, some small fish are seen hiding amid the plants.

A silverback mountain gorilla hides behind a thick layer of plants and picks at leaves in the Virunga National Park, Democratic Republic of Congo.

USA: Various shots of a coal-fired power plant emitting smoke from large chimneys, huge clouds of white smoke drifting with sunlight shining through, wide view of power plant seen from across the river.

Two silverback mountain gorillas are initially in shot. The gorilla in the foreground sits in dense vegetation in the Virunga National Park, Democratic Republic of Congo, picking at leaves. It then wanders off to hide behind a thick layer of plants.

Close up of spinifex grass swaying gently in a light breeze. Pull-focus to show boundless desert landscape.

Close up of yellow flowers with a red centres.

Georgia: Static shot of several bunches of green Rkatsiteli grapes hanging on the vine.

Close up shot of two purple thistle flowers, a bee flies in to shot and lands on the front flower then flies away.

Close up of vibrant red-hot poker flowers (also known as Kniphofia) growing in a field in Zaire. In the background people are seen carrying wood. The flowers look like they have lots of red hot spikes sticking out of them.

Sbouya, Morocco: Various wide shots of arid looking hills covered with green cacti which are growing red fruits.

Scenic wide shot, Arizona, USA. Desert flora is silhouetted against unusual cloud formations and a setting orange sun.

Close up of lily pads on a lake's surface bobbing in time with moving water.

A single pomegranate hangs from a branch.

Monserrate, Huila, Colombia: Various shots of a coffee picker collecting coffee beans from the branches, close up of the coffee beans in the basket.

Togo: A farmer picks maize crops on his farm.

Side shot of a silverback mountain gorilla sits in a forest, picking at leaves to eat, in the Virunga National Park, Democratic Republic of Congo.

Indonesia: Aerial view of land cleared and terraced in preparation for a new palm plantation. Close up of an oil palm sapling

Pan from one side of a Saguaro cactus to the other side. Cactus is set against bright blue sky.

Sharp spines poking out from a cactus' green skin, camera re-focusses to show more spines in the foreground.

Washington DC, USA: Dome of the Capitol Hill building rising from behind blossoming cherry trees.

Close up shot of pale pink cherry tree blossoms on branch.

Saguaro cacti basking in orange sunset.

A silverback mountain gorilla looks around the surrounding dense vegetation in the Virunga National Park, Democratic Republic of Congo.

Arms of a Saguaro cactus silhouetted against a vibrant orange sunset.

Uzbekistan: Mid shot of a cotton flower in a field and cotton workers tending crops.

A silverback mountain gorilla in the Virunga National Park, Democratic Republic of Congo, peers around the dense vegetation in which it stands.

A silverback mountain gorilla sitting in dense vegetation in the Virunga National Park, Democratic Republic of Congo. Flies fly around its head.

Washington DC, USA: Cherry blossoms gently swaying in the wind, camera re-focuses to reveal the Capitol Hill building in the background.

Static shot of a bunch of green grapes.

Side shot of a silverback mountain gorilla sitting in dense vegetation in the Virunga National Park, Democratic Republic of Congo. Flies fly around its head.

UK: Close up shot of Melons on a supermarket shelf with a discounted price tag.

Spiky cactus branches glowing against sunset, tilt up to show a Saguaro cactus against warm orange sky.

Arms of a Saguaro cactus seen against a beautiful orange sunset.

Back shot of a silverback mountain gorilla walking into dense vegetation in the Virunga National Park, Democratic Republic of Congo.

A Saguaro cactus is silhouetted against the orange halo of a sunset. The entire sky is gloriously orange.

Tilt from Saguaro cactus to bright blue sky.

Grooved stem of a cactus with small spines poking out from its skin.

Sharp spines poking out from a cactus' green skin.

Jerusalem: Various shots of fresh produce including vegetables and fruit at a market stall. a mans hand hovers over some potatoes as he selects one and puts it into his bag.

A shy silverback mountain gorilla crawls backwards into dense vegetation in the Virunga National Park, Democratic Republic of Congo.

Washington DC, USA: Daffodils swaying in the wind with Capitol Hill building in the background.

A silverback mountain gorilla in the Virunga National Park, Democratic Republic of Congo, picks at leaves and vines and chews them while lying down.

Close-up shot of hands picking some purple peppers.

Close up shot of pale pink cherry tree blossoms on branch.

A silverback mountain gorilla in the Virunga National Park, Democratic Republic of Congo, sits in dense vegetation, scratching its face. It then gets up and wanders off.

High Saguaro cactus silhouetted against sunset in desert.

Close up shot of pale pink cherry tree blossoms on branch.