Dorset, United Kingdom: Aerial view encircling standing stone in sea on beach on the Dorset coastline.

Close view of shark swimming towards and past camera underwater, shoal of fish seen in background

Side view of shark swimming along underwater left to right through shoal of fish

Sun setting across hazy African plain. A Wildebeest stands in foreground. A large tree is silhouetted in the background. Savannah Plain, Tanzania, Africa.

Side view of Blue Whale swimming underwater slowly past camera from right to left, swimming just below surface of water

Antarctica, Elephant Seal on rocky beach looking into camera, its nostrils flare as it breaths in and out with its mouth open as if smiling.

Turkey: A boat travels smoothly across the Bosphorus River. The light is reflected on the water's surface.

Shark swims underwater towards camera in blue sea then off to right side

A golden sunset over a stretch of desert in Arizona, USA. A Saguaro cactus stands silhouetted in the foreground. The image slowly fades to black.

A golden sunset over a stretch of desert in Arizona, USA. A silhouetted, Stetson-wearing cowboy walks towards a silhouetted Saguaro cactus and lifts his hat.

Mailbox silhouetted against blue sky with grass on ground swaying in the wind.

Mailbox silhouetted against sun, surrounded by grass swaying in the wind.

A golden sunset over a stretch of desert in Arizona, USA. A Saguaro cactus stands silhouetted in the foreground. The image slowly fades to black.

Side view of a head and body of Blue Whale swimming past camera underwater right to left very slowly

Close view of grooves (ridges) on underside of Blue Whale swimming slowly past camera underwater, whale partially breaks through surface of water

Painted Desert, Arizona, USA. Slow-motion, medium long-shot of an unidentifiable cowboy on horseback silhouetted against gold-tinted dust filled background twirling lasso. A dog runs across frame at foot of horse.

Mailbox silhouetted against sun, surrounded by grass swaying in the wind.

Top shot looking down on Blue Whale swimming underwater very slowly, whale can barely be seen

Close view of blood and tiny fish swirling in an amorphous red blob just under surface of water, shark swims into blood from left side of screen encircling blood then turns round swimming close towards camera

Antarctica: Elephant seal on rocky beach resting and looking at the camera with a gently twinkling eye. There is a lake with seals swimming in the background.

Antarctica: Elephant seal floating in shallow water looking at the camera gently bobbing in the waves.

Side view of Blue Whale swimming diagonally upwards underwater from left to right, camera passes over whale's body as it swims away

Antarctica: Elephant seal on rocky beach yawning and raising its head with snow covered mountains and lake in the background.

Cloudy view of large Blue Whale very slowly swimming along sea underwater from left to right then disappears until only tail seen, ridges on throat can be seen

Shark swims up into concentration of blood floating in amorphous blob just under surface of water surrounded by mass of small fish

Blue Whale swims towards camera underwater, side view of head seen as it partially breaks through surface of water as whale passes camera slowly from left to right

Arizona, USA. A silhouetted, Stetson-wearing cowboy walking towards the horizon lit by a golden sunrise. The cowboy stops to lift his hat and wipe his brow.

Painted Desert, Arizona, USA. Slow-motion, close-up, pan up of an unidentifiable cowboy on horseback galloping towards camera silhouetted against gold-tinted dust filled background.

Shark swimming underwater through concentration of blood floating in amorphous red blob just under surface of water, then shark swims close past camera

A golden sunset over a stretch of desert in Arizona, USA. A Saguaro cactus stands silhouetted in the foreground. A silhouetted Stetson-wearing cowboy through the centre of the frame towards the horizon.

Partial view of a Blue Whale swimming just under the surface of the sea underwater, whale is very slowly flipping tail causing water disturbance

A golden sunset over a stretch of desert in Arizona, USA. A silhouetted, Stetson-wearing cowboy looks towards a silhouetted Saguaro cactus and lifts his hat.

Turkey: A boat bobs gently on the Bosphorus River. The light is reflected on the water's surface.

Painted Desert, Arizona, USA. Slow-motion, medium long-shot of an unidentifiable cowboy on horseback in background rounding up cattle in foreground. Cowboy and cattle are silhouetted against gold-tinted dust filled background.

Side view of shark swimming along deep underwater left to right through shoal of fish as another shark passes right to left

Side view of shark swimming along underwater right to left past shoal of fish

Zoom out to a view of a golden sunset over a stretch of desert in Arizona, USA. A Saguaro cactus stands silhouetted in the foreground. A silhouetted Stetson-wearing cowboy through the centre of the frame towards the horizon.

A golden sunset over a stretch of desert in Arizona, USA. A silhouetted, Stetson-wearing cowboy looks towards a silhouetted Saguaro cactus and lifts his hat.