This undated image provided by the U.S. Department of Agriculture Wildlife Services shows a group of feral pigs protecting a feeding area from livestock. The federal agency has teamed u

 

              This undated image provided by the U.S. Department of Agriculture Wildlife Services shows a group of feral pigs protecting a feeding area from livestock. The federal agency has teamed u
This undated image provided by the U.S. Department of Agriculture Wildlife Services shows a group of feral pigs protecting a feeding area from livestock. The federal agency has teamed up with the state of New Mexico and others as part of a $1 million pilot project to eradicate pigs from the state. Nationally, federal officials say the feral pig population has ballooned to an estimated 5 million. (AP Photo/Courtesy of the U.S. Department of Agriculture Wildlife Services)