America's pig problem

Dozens of states are being overrun by aggressive feral hogs. Can they be controlled?

Feral hogs.
(Image credit: AP Photo/Eric Gay, File)

How many feral hogs are there?

Their population has exploded to an estimated 6 million across 39 states, with the greatest concentration in the South, particularly Texas. Feral hogs — also known as wild boars, wild pigs, and "razorbacks" — are prodigious breeders, have few natural predators, and are voracious, causing $2.5 billion in damage to farms and ecosystems annually. Like all pigs, the feral variety are omnivores and will devour anything they can tear up with their long snouts and 6-inch-long, razor-sharp tusks, including crops, gardens, frogs, worms, eggs, and even deer and lambs. They favor plants, and 50-pig herds, or "sounders," can empty whole fields of corn or wheat overnight. The invasive species has spread far and wide largely because it is well adapted to its environment and breeds so rapidly, with ranchers and hunters making the problem worse by trucking wild hogs into new areas so they can be shot for sport. Hunting them to control their population hasn't worked: You'd have to shoot 70 percent of the feral pig population every year just to keep it static.

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