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Four wolves cross a snowy slope among evergreen trees above a vast lake dotted with islands and drifting ice

Park news · Isle Royale

Isle Royale: 37 Wolves Counted, a Rebounding but Still Fragile Population

The latest winter count found 37 wolves on Isle Royale, AP reports, an uptick that inbreeding still threatens.

By David Sanchez,

If you've been dreaming of spotting a wild wolf in a national park, Isle Royale is climbing back up our list. According to the Associated Press, the winter 2025-2026 count tallied 37 wolves on this isolated island in Lake Superior. The number is worth pausing on, because it tells a real comeback story.

Let's back up. Between 2018 and 2019, again per AP, biologists released nineteen wolves on the island to revive a pack on the brink of extinction. By the end of the study period, in 2023, scientists still put the population at twenty-seven animals. Going from there to thirty-seven wolves today marks a clear increase in the reintroduced population.

Four wolves walk along a snowy trail among evergreen trees, rocky outcrops, and patches of autumn foliage

Researchers tracked this trend over the 2018-2023 period and published it in the journal Conservation Science and Practice, AP reports. They land on an encouraging figure. The wolves have a better than 80% chance of surviving over the next twenty years. For an animal many had written off on the island, that's a stunning turnaround.

It's not all settled, though. According to the same source, inbreeding is confirmed and remains a long-term concern, even as the numbers climb. A population founded on just a few animals keeps a narrow genetic diversity, and that's exactly what scientists are watching for the decades ahead.

For anyone planning a trip, the news is concrete. With that many wolves on such a small piece of land, Isle Royale currently offers one of the best chances to see wild wolves in an American national park. Nothing's guaranteed, the animal stays elusive and the island takes real logistics, but conditions haven't been this good in a long time.

To plan the crossing, the open seasons, and the best wildlife-viewing areas, start with the Isle Royale park guide. You'll see why this island, cut off from the mainland, remains one of the most fascinating study grounds in the country.