In this May 17, 2017 photo, cowboys guide oxen through a ford of the Taquari River in Corumba, in the Pantanal wetlands of Mato Grosso do Sul state, Brazil. Greener pastures grow under water in the Pantanal de Mato Grosso do Sul, an immense area of wetlands in western Brazil. (Photo by Eraldo Peres/AP Photo)
