Researchers say remote Lake Superior island's wolves are thriving as packs prey on moose
This Sept. 26, 2018, photo provided by the National Park Service shows a 4-year-old female gray wolf emerging from her cage as she is released at Isle Royale National Park in Michigan. (National Park Service via AP, File)
Wolves on a remote island in Lake Superior appear to be thriving, but they're making deep dents in the moose population that they rely on as a leading food source, according to a report released Monday.
Isle Royale is a 134,000-acre (54,200-hectare) national park in far western Lake Superior between Grand Marais, Minnesota, and Thunder Bay, Canada. The island is a natural laboratory, offering scientists a rare opportunity to observe wolves and moose largely free from human influence.
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