Svarta huggormar parar sig på våren - Mating black vipers - timelapse
Two Common European adders (or vipers) (Vipera berus) are lying in a garden on a sunny day in spring. The normal colored male is courting the melanistic female, slithering over her body, caressing her. This goes on for a long time, this is a time lapse showing how he again and again glides over her.
Noraström, Höga Kusten, Kramfors kommun, Västernorrland, Sverige