The Narwhal https://thenarwhal.ca Deep Dives, Cold Facts, & Pointed Commentary en-US Copyright 2026 The Narwhal hourly 1 The feds tried to hold the line in an invasive species battle — and lost. What’s next? https://thenarwhal.ca/manitoba-zebra-mussels-containment-failure/ Fri, 14 Feb 2025 14:00:00 +0000 https://thenarwhal.ca/?p=131258 Riding Mountain National Park was the frontline of the westward invasion, but Parks Canada now says stopping zebra mussels at the park is ‘no longer an achievable option’ Julia-Simone Rutgers In-Depth News freshwater Manitoba protected areas wildlife Winnipeg Photo: Mike Grandmaison Riding Mountain National Park: a misty morning over Whirlpool lake in an orange light