In this May 17, 2017 photo, a butterfly perches near a cowboy's "Guampa," or a drinking ox horn, in Corumba, in the Pantanal wetlands of Mato Grosso do Sul state, Brazil. The horn is used to drink "Terere," an herbal "mate" beverage served ice cold and sipped through a silver straw. (AP Photo/Eraldo Peres)