Scarlett Johansson and AC/DC team up to help drones scare off wolves and save cattle

Biologists are testing drones near the California-Oregon border. They use sounds like music and human voices. The aim is to keep wolves away from cattle. Gray wolf populations increased after reintroduction. Ranchers are trying new methods to protect livestock. Drones with loudspeakers play sounds to scare wolves. However, some ranchers find the technology expensive and potentially ineffective long-term. Read below!