Rhine Falls of Schaffhausen, Neuhausen bei Schaffhausen, Switzerland, Europe

Skip Brown surfs his stand up paddleboard in fast moving whitewater on the Potomac River near Great Falls, Virginia, United States of America, North America

Long beaked common dolphin (delphinus capensis) sea of cortez, mexico, abstract image

Killer whale (Orcinus orca) surfacing at speed, with eye visible under white eye patch. Snaefellsness Peninsular, Iceland.

Common dolphin (Delphinus delphis) - close up dolphin surfing at speed, with eye visible through a film of water. Hebrides, Scotland. (RR)

Killer whales (Orcinus orca) surfacing towards the camera in rough water. Olafsvik, Iceland.

Common dolphin (delphinus delphis) Fast moving common dolphin. Gulf of California.

Beagle, male, running through morning dew in a meadow, Austria, Europe

Dog on beach at sunrise, Chatelaillon-Plage near La Rochelle, Charente-Maritime department, Nouvelle-Aquitaine, France, Europe