Although drones are often associated with privacy and security concerns, a new research project from NOAA and the Vancouver Aquarium has revealed the positive potential for unmanned aerial vehicles. Aimed at studying the health and habits of threatened killer whales off the coast of British Columbia, the study utilizes a specially-designed hexacopter drone which hovers, unnoticed, a mere 100 feet above the majestic mammals and allows for unprecedented insights into their behavior. More on the story, including additional photos, at Discovery News.