BERLIN, GERMANY - JANUARY 20: A machine used for determining the sex of chicks while they are still in their eggs operates at the stand of the ministry for Agriculture and Food Economy during the Gruene Woche or Green Week Agriculture Fair on January 20, 2017 in Berlin, Germany. The Gruene Woche is the world's biggest trade fair for agricultural and food products and will be open to the public from January 20-29. (Photo by Michele Tantussi/Getty Images)