A cross between domestic pigs and wild boars was intentionally bred in Canada. The resulting 'super pigs' escaped captivity and could be invading the US.

Tech Insider
Feral pigs are already a nuisance in southern US states, but
Feral pigs are already a nuisance in southern US states, but "super pigs" from Canada could be invading from the north.

Rodger Mallison/Fort Worth Star-Telegram/Tribune News Service/Getty Images

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