1. The following are considered “natural heritage”: • Natural monuments consisting of physical and biological formations or groups of such formations that have outstanding universal value from an aesthetic or scientific point of view; • Geological and physiographic formations and strictly delimited areas that constitute the habitat of threatened species, both animal and plant, that have outstanding universal value from an aesthetic or scientific point of view; • Strictly delimited natural sites or areas that have outstanding universal value from the point of view of science, conservation, or natural beauty. 2. This category of heritage practically encompasses that of genetic heritage, that is, the entire set of genes of living beings. The natural elements that belong to this heritage are landscape features often appreciated by the public.