Drones blasting AC/DC and Scarlett Johansson are helping biologists protect cattle from wolves

In this image taken from video released by the USDA, Gray wolves halt an attack on a cow at an undisclosed location along the Oregon/California border after a drone emits noises at them as part of efforts by the USDA to monitor predators at night and repel them from livestock by non-lethal means. — USDA via AP

For millennia humans have tried to scare wolves away from their livestock. Most of them didn’t have drones.

But a team of biologists working near the California-Oregon border do, and they're using them to blast AC/DC’s Thunderstruck, movie clips and live human voices at the apex predators to shoo them away from cattle in an ongoing experiment.