Photo - In this May 22, 2014, photo, men chat as they travel in the  “Almirante Barbosa” regional boat, on the Solimoes river near Manaus, Brazil. The lumbering wooden vessels are slow going _ the “Almirante Barbosa” chugs at some 20 kilometers (12 miles) an hour, with trips that can stretch out for days or even weeks. (AP Photo/Felipe Dana)