Underwater shot of a common seal lounging in a rock crevice. It curiously sniffs the camera and swims away.

A silverback mountain gorilla in the Virunga National Park, Democratic Republic of Congo, looks curiously into the camera then hides behind the dense vegetation surrounding it.

A common seal swims around the camera and curiously peering into the camera lens.

Medium shot of a polar bear walking through untracked snow. Lifts head occasionally in a curious manner.

A silverback mountain gorilla in the Virunga National Park, Democratic Republic of Congo, sits among dense vegetation and looks into the camera curiously.

Medium shot of an adult polar bear slowly leading two cubs through water. Bears occasionally lifting heads towards the camera in a curious manner.

A common seal swimming by sea bed and curiously circling the camera before swimming away.

A close up view of a Silverback Mountain Gorilla posing and looking straight into the camera curiously.

A point of view shot of camera going through jungle to find a Silverback Mountain Gorilla lounging amid the bushes. The gorilla looks at the camera curiously.

A silverback mountain gorilla in the Virunga National Park, Democratic Republic of Congo, looks into the camera curiously.

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.

Medium close up of a lion cub standing in grasslands and under dead tree branches, chewing a twig from tree. An adult lion is resting in the background.

An American black bear climbs quickly up a tree and rests on a branch.

Galapagos Islands: Wide shot of a Sea Lion emerging from the sea onto a beach then a close shot of it sniffing at the camera.

Underwater shot of bright orange Garibaldi fish swimming amongst swaying,seaweed. Fish occasionally swim up to the camera, great contrast between orange fish, blue water and sea vegetation.

A silverback mountain gorilla starts to climb a tree in the Virunga National Park, Democratic Republic of Congo.

An Eastern chimpanzee baby dangling from a tree by its arm as it chews a small branch.

An active Woolly monkey climbs from branch to branch on a tree.

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

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.

An American black bear cub sits on the forest floor, chewing a long branch. It then falls backwards onto its mother. When the mother bear tries to nurture her cub, the cub starts to play fight.

A restless American black bear cub sits on the forest floor, playing with a long branch.

A Woolly monkey hides behind a thick branch, looking around suspiciously. It then moves onto a nearby branch, with its baby hanging from its back.

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

A family of Eastern chimpanzees relaxing in a forest clearing in the Gombe National Park, Tanzania.

Underwater shot of two California sea lions playing in water. They swim around the camera and one tries to bite it.

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

Medium shot of a male polar bear walking between snow covered boulders.

Close-up shot of a family of Eastern chimpanzees relaxing in a forest clearing in the Gombe National Park, Tanzania. The baby chimpanzees are very restless and are pestering their parents. One of the baby chimpanzees is climbing all over its parents and ends up lying on the mother.

Medium shot of a polar bear sluggishly trudging through white snow.

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

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

Underwater shot of a California sea lion swims quickly towards the camera, and swims away again.

A Woolly monkey sits on thick branch, looking down, then crawls along the branch.

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

Solo Seal hangs motionless in the sea, looks at the camera in a pensive manner, then swims out of view.

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.

A group of guianan black spider-monkeys feeding and playing.

An American black bear explores the forest.

An active Woolly monkey climbs along a thick tree branch and jumps across to another branch.

A Woolly monkey climbs onto a thick branch. Its baby is clinging onto it. The monkey moves along the branch.

Underwater shot of a whitetip shark swimming over the camera with three pilot fish in tow. The shark's mouth is clearly visible as it swims past.

A common seal swims from behind swaying kelp and peers into the camera lens before swimming away to a rock crevice.

A silverback mountain gorilla sits calmly in dense vegetation, picking at leaves to eat, in the Virunga National Park, Democratic Republic of Congo.

Knut, the famous Polar bear, looking around his enclosure.

A family of Eastern chimpanzees relaxing in a forest clearing in the Gombe National Park, Tanzania. When they wander off, the baby chimpanzee hangs onto its mother.

A close up view of a Silverback Mountain Gorilla staring straight into the camera with a very determined look in its eyes.

An American black bear cub plays against a tree then wanders off to join another cub and the mother bear.

A Woolly monkey plays with the baby of another monkey. The baby is clinging onto its mother. The mother then wanders off with its baby.