They devour farmers’ crops, breed rapidly and can tunnel beneath the snow to survive: feral pigs have taken residence on the Canadian prairies and are wreaking destruction. Today, Megan Evans, the Executive Director of the Alberta Invasive Species Council, takes us through why the surge in swine is so serious, and why efforts to eradicate them have been so unsuccessful. For transcripts of this series, please visit: https://www.cbc.ca/radio/frontburner/transcripts