Goldfish invasion of Hamilton HarbourHamilton Harbour, Ontario, Canada 3 Feb 2021
Macleans.ca
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Rat infestation plagues Toronto neighbourhoodToronto, Ontario, Canada 29 Apr 2019
CBC
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Ecological collapse of Toronto's ravine system has begun, researcher saysRavines in Toronto, Ontario, Canada 4 Nov 2018
CBC News
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