0:55 Feral swine are also known as feral hogs, wild boar, Russian boar, Eurasian boar or razorbacks. They are the same species ( sus scrofa) as pigs found on farms -- but are considered feral because they are the descendants of escaped or released pigs. They look similar to farm hogs, but are leaner, have coarser fur and grow longer tusks. Peggy Doty is an environmental and energy stewardship educator with the Illinois Extension and she will deliver the lecture. She says there's a population of swine that are unrestrained and have adapted to living wild and free in 40 states, including Illinois.