"It's hard to breathe. The heat gets stronger and stronger," said Amilton, a local fishing guide. "The Pantanal is already hot and it gets hotter, drier, with smoke, the weather gets very bad. "The men guide cattle across the flood plain, hoping for a better chance of survival. "The way the fire is coming, it could surround them and burn them to death," said Cleiton, a farmer.The Pantanal wetlands, roughly 10 times the size of the Florida everglades, are home to jaguars, tapirs, caimans and giant anteaters.