How drones are helping polar bears

Finding—and tracking—polar bears is not an easy task. Researchers battle frigid temperatures, heavy winds, and sea ice that’s melting earlier than in past decades. The polar bears themselves have a home range of a few hundred miles, and with their white coats, it can be a challenge to see them against ice and snow. Traditional methods of finding and tracking them with helicopters are invasive and costly. Paired with the treacherous Arctic conditions, including freezing...