Canadian ‘super pigs’ set to spread disease and damage the environment in the US, expert warns

… helped them survive the tough Canadian winters, and they can burrow … the University of Saskatchewan in Canada.
The pigs “cause … to humans, livestock, pets, and native wildlife,” he said.
The … .”
While pigs are not native to the US, they have …… helped them survive the tough Canadian winters, and they can burrow … the University of Saskatchewan in Canada.
The pigs “cause … to humans, livestock, pets, and native wildlife,” he said.
The … .”
While pigs are not native to the US, they have …