DETROIT — Isle Royale may be down to a lone wolf, as the federal government ponders whether it will replenish the pack on the northern Michigan Island.
For the last two years, a male and female wolf have held on as the last remaining pair of wolves on the 893-square-mile island national park in Lake Superior. The pair were spotted in the summer of 2016, on the motion-triggered trail camera of Michigan Technological University wolf researcher Rolf Peterson, and again in Michigan Tech’s annual winter survey of the island last January.
But the survival story appears to have taken a turn this summer.
“I wasn’t able to confirm two wolves,” said Peterson. “We did confirm one wolf with a trail camera, but we didn’t get any definitive evidence of the presence of both wolves this summer.”