Petrol station worker Jessica Higuera, 43, smells the earth during a search for the bodies of missing people in Los Mochis, Sinaloa, Mexico, March 20, 2019. After pushing a blade into the ground, a nauseating smell can indicate the presence of a body. Higuera's son, Jesus, was 19 when he went missing since May 20, 2018. REUTERS/Mahe Elipe