Chinese man leading horse followed by two humped camels along riverbank past suspension bridge over Yellow River in China

Legs of young Secondary school children wearing casual summer clothing walking in single file across school playground followed by female schoolteacher with small group of children. Wall in background has paintings on it.

Kamchatka: Aerial view travelling above river folllowing its course winding through landscape.

Rome, Italy: Line of three new Fiat 500 Cinquecento cars travelling towards camera along road past traffic and building with columns.

A rainbow runner fish and a barberfish swimming alongside each other. The rainbow runner fish is trying to catch smaller fish in its mouth.

Large shoal of fish swirling underwater viewed from below with sun shining through surface of water, fish constantly change direction

Two rainbow runner fish circling a barberfish over a reef.

Large shoal of fish swirling underwater viewed from below with sun shining through surface of water, fish constantly change direction

A female lion leads two cubs across savannah grasslands in Etosha National Park, Namibia.

Two pairs of feet belonging to young children slide down metal slide in outdoor playground area, one after the other feet wearing trainers slide towards camera then stop

Sequence of shots showing traffic along motorway/freeway in America travelling in lines towards camera

A rainbow runner fish and a barberfish swimming alongside each other.

Sequence of shots showing lines of cars slowly moving towards camera in traffic queue along motorway/freeway in China

A rainbow runner fish trying to catch smaller fish in its mouth, while a barberfish swims closeby.

Bodies and arms of young Secondary school children, wearing casual summer clothing who are briefly standing in queue, camera pans to legs of children as they walk in single file across school playground

Shoal or school of bright blue creole wrasse tropical fish swimming against blue sea water. Another breed of fish, a bit bigger, swims through them, an indvidual in the crowd.

London, England: Point of view shot travelling on an Underground train as it travels along tracks in a tunnel.

A barberfish swimming among several rainbow runner fish over a reef.

Sseveral rainbow runner fish circling a barberfish over a reef.

Close view of black taxi cabs driving along in traffic in London close together

Thailand, Wide slow motion shot of bats all flying in the same direction against a blue sky and distant hills.

Lines of cars slowly moving in traffic queue along motorway/freeway in China seen through white smog

Shoal or school of blackfin barracuda, tropical fish, swimming

Poole, Dorset, United Kingdom: Aerial view of empty container boat passing under camera as it travels along sea leaving a trail of white froth.

Two rainbow runner fish swimming in a circle over a reef.

Camera looks down over cars travelling on lanes of motorway/freeway

Two shots showing lines of cars and lorries slowly moving towards camera in traffic queue on motorway/freeway in Los Angeles through slight haze

Sequence of two shots showing lines of cars in American traffic with blurred headlights travelling along motorway/freeway towards camera then moving away from camera with red backlights on

Shoal or school of blackfin barracuda, tropical fish, swimming. As they swim past camera,can see the patterns on their skin. The sunlight comes through the water so it appears bright.

Lines of cars in traffic travelling towards camera on motorway/freeway seen through heat haze in America, overhanging sign saying "Washington Blvd" can be seen

Two rainbow runner fish and a barberfish swimming in a circle over a reef.

Shoal or school of blackfin barracuda, tropical fish, swimming. As they swim past camera,can see the patterns on their skin

Line of school children's feet walking along in classroom, seen from the level of the green floor.

Medium shot of a stream of penguins waddling past beached elephant seals. The seals are of the same colour as the ground, nearly blending in with the scenery, camouflaged. Mountain in background has snow in patches.

Back close view of heads and shoulders of choirboys from St. Paul's Cathedral, London wearing choristers uniform of red cassocks with white ruffs, walking along in line past camera and up steps, camera pulls focus towards end of clip

Medium shot of streams of refugees carrying firewood as they meander over grasslands in Zaire.

Shoal or school of blackfin barracuda, tropical fish, swimming. As they swim past camera, they are silhouetted against the surface of the sea

Colour film from the 1970s showing a line of young schoolboys in Primary school classroom each taking a glass bottle of milk with silver foil lid from crate then a drinking straw, the children are all wearing winter clothing and one boy looks very sweet and is wearing round glasses

Shoal or school of blackfin barracuda, tropical fish, swimming. As they swim past camera,can see the patterns on their skin.

Long view underneath two sharks swimming underwater near shoal of fish, sun is shining through surface of water

Back view of motor cars coming to a stop in traffic queue

Shot from below looking up at a shoal or school of creole wrasse tropical fish swimming towards the surface of the sea, silhouetted against blue sea water so they appear black.

A rainbow runner fish and a barberfish swimming alongside each other. Other fish can be seen swimming in the background.

Back view of lines of cars and vans slowly moving away from camera in traffic queue on motorway in Beijing

Line of school children's feet entering school through door seen from floor level

Shoal or school of blackfin barracuda swimming silhouetted against the water's surface

Legs of young Secondary school children wearing casual summer clothing walking in single file across school playground. Tile wall in background has paintings on it.

Shoal or school of blackfin barracuda, tropical fish, swimming. Can see the pattern on the sides of them

Lines of cars and vans slowly moving towards camera in traffic queue on motorway

Lines of cars and lorries slowly moving towards camera in traffic queue on motorway