Ecological train wreck: “Super pigs” from Canada pose a growing threat to the U.S.

… in harsh conditions, including Canadian winters. They are omnivorous, … erosion and destruction of native habitats, can necessitate costly … forests to grasslands.
Originally native to Eurasia, feral pigs … a significant threat to native wildlife. They compete for …… in harsh conditions, including Canadian winters. They are omnivorous, … erosion and destruction of native habitats, can necessitate costly … forests to grasslands.
Originally native to Eurasia, feral pigs … a significant threat to native wildlife. They compete for …