Wolf populations on Isle Royale, a remote island in Lake Superior, have reached their highest levels since the late 1970s, according to researchers who released new population estimates on Monday.

The 134,000-acre national park, located in far western Lake Superior between Grand Marais, Minnesota, and Thunder Bay, Canada, serves as a natural laboratory for scientists studying predator-prey dynamics. The island offers researchers a rare opportunity to observe wolves and moose with minimal human interference.

While wolf numbers have increased substantially, the moose population they depend on as a primary food source has declined dramatically. The latest 2026 population estimates show wolves are thriving on the island, but their success is creating significant pressure on the moose herds.

Isle Royale's isolated ecosystem provides scientists with unique insights into how predator and prey populations interact over time. The island's wolf and moose populations have fluctuated significantly over decades, making it an important site for long-term ecological research.

The current population dynamics represent a reversal from previous periods when wolf numbers had declined to critically low levels, requiring intervention to maintain genetic diversity in the island's wolf population.