Fish with teeth are lurking in an Illinois lake. Officials say several Pacu's have been discovered in Litchfield's Lake Lou Yaeger this month. The fish is related to the piranha but officials say they won't go after humans. Lake Superintendent Jim Cadwell says the Pacu would rather eat nuts, snails, and leafy veggies. He says the Pacu's teeth are more like humans, not sharp like the piranha. Still, some people won't take any chances. They say they won't get in the water so long as they know the fish is there. Officials say someone probably dumped the fish in the lake. Whoever is responsible could face criminal charges.