A stretch of unusually warm weather has forced federal officials to suspend researchers' annual wolf-moose count in Isle Royale National Park for the first time in more than six decades. Isle Royale is a 134,000-acre (54,200-hectare) island situated in far western Lake Superior between Grand Marais, Minnesota, and Thunder Bay, Canada. The park is a wildlife biologist's dream - it offers a rare opportunity to observe wolves and moose acting naturally without human influence. Researchers have conducted an annual survey of the park's wolf and moose population since 1958. She said warm temperatures have left the ice around the island unsafe for the scientists' ski-planes to land.

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Persons: It's, Sarah Hoy, John Vucetich, Rolf Peterson, Hoy, ” Hoy, “, We're, we're Organizations: Michigan Tech University, Michigan Tech, National Park Services, National Weather Service Locations: Isle Royale, Isle, Lake Superior, Grand Marais , Minnesota, Thunder Bay, Canada, Michigan