This petroglyph or rock engraving shows a male archer accompanied by dogs two of whom are attache d to him by leashes . While they have erect ears they are all shown with curly tails perhaps to make it quite clear they are not wolves or jackals. Since this image dates back thousands of years it would appear form the earliest stages of domestication humans wee practising the ART of selective breeding for certain traits.
Rock engraving seems to have been practised more in arid areas and while used on all continenets as an early art form was particularly common or perhpas more easily found in the sahara and arabia.
