*Shadow: (ombre in french)
A shadow is a region of darkness where light is blocked. A shadow occupies all the space behind an opaque object with light in front of it.
The cross-section of a shadow is a two-dimensional silhouette, or reverse projection of the object blocking the light.
The smaller the angle between the direction of the light and the surface on which the shadow occurs, the longer the shadow is.
Walking on the Moon Shooting Rabbit Tracks, St-Donat, Quebec, Canada
Frozen tracks were made by a wild rabbit ( hare). They look like if they are applied over the snow, in fact they are old frozen tracks which are covered with a thin layer of fresh snow.