Watch—and listen to—two satisfying minutes of a fox on the prowl in Yellowstone National Park. | National Geographic

Have you ever watched a red fox leaping high into the air and diving nose-first into the snow? This iconic behavior, known as “mousing,” is not only mesmerizing to watch but also a masterclass in precision hunting. Red foxes rely on their acute senses to detect rodents scurrying beneath the snow. Their large, triangular ears are finely tuned to pick up even the faintest rustle. But the secret weapon? The Earth’s magnetic field. Studies suggest foxes align their pounces with magnetic north, incre