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Peer-Reviewed Study Shows Coastal Wolf Hauling Submerged Crab Trap in British Columbia

Footage from an Indigenous-led invasive-crab program prompts new questions about wolf cognition.

Overview

  • Remote cameras captured a female coastal wolf swimming to a buoy, pulling in the line, dragging a fully submerged crab trap to shore, and accessing the bait.
  • The observations, analyzed by researchers led by Kyle Artelle with co-author Paul Paquet, were published in the journal Ecology and Evolution.
  • The traps are part of Haíɫzaqv Guardians’ efforts to monitor and remove European green crabs, with deeper sets marked by surface floats.
  • Scientists initially suspected marine predators because the damaged traps never surfaced at low tide, but video evidence identified a wolf as the culprit.
  • Experts differ on whether the behavior qualifies as tool use, though researchers say it reveals sophisticated problem-solving and could influence future trap design.