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Northland College faculty Jesse M. Caskey and Franklin C. Lane

Before the Beginning

Fifteen years before the Apostle Islands became a park, faculty and students established a field laboratory on Rocky.

Flying squirrel at bird feeder fluorescing pink under UV light. Photo taken by Jon Martin, professor of forestry at Northland College.

Flying Squirrels That Glow Pink in the Dark

While ultraviolet fluorescence is common in birds, butterflies and sea creatures, scientists haven’t often observed it in mammals.