They weigh 400 pounds, run 30 mph, shred farmland like a lawnmower, and they’re breeding their way south across the border right now.

These aren’t ordinary feral hogs. They’re “super pigs” — hybrid wild boar–domestic pig crosses engineered by accident in Canadian captivity, and they escaped. Now they’re in Montana, North Dakota, Minnesota, and the sightings keep spreading. They tear up crops, wreck wetlands, spread disease, and outsmart almost everything we throw at them.

In this video we break down how it happened, why wildlife officials are calling it one of the biggest invasive species threats in decades, and what — if anything — can be done