The word refers to the various ways in which nature expresses itself on our planet. All the different species of animals and plants that we see every day are the result of biodiversity. This great heritage a part is defined agricultural biodiversity, namely the collection of plant and animal varieties which were used at one time in a given territory and characterized as they developed all traditions food, landscape, cultural and historic attractions of the place and the people who lived there.
Fao estimates that over the past century have disappeared three quarters of genetic biodiversity of agricultural crops, so that currently the human nutrition depends only on a few species of plants. Many varieties and breeds are now extinct, then lost forever, but others have been preserved thanks to the farmers and ranchers custodians of biodiversity, people I knew and wanted to preserve this historical background.