Brazil’s Pantanal region has the highest jaguar density on Earth, drawing camera-toting visitors to its riverbanks. Despite overtourism concerns, one enclave may offer a model for how to protect the ...

The jeep is squelching through the marsh when the guide calls for a hush. A gentle beep emanates from his hand-held receiver, which he sweeps around him to pinpoint the signal. “Nine o’clock!” he ...