The Secret Fluorescent Life of Flying Squirrels

flying squirrel specimen
A flying squirrel museum specimen under normal light versus ultraviolet light. Photo courtesy of AM Kohler, et al.

In May 2017, a surprising discovery was made in the woods of Bayfield County, Wisconsin, just about a 5-hour drive north of Promega headquarters. Jonathan Martin, Associate Professor of Forestry at Northland College, was exploring the forest with an ultraviolet (UV) light in search of fluorescent lichen or plant life. What he found instead was a bright pink glow coming from a most unexpected source—a flying squirrel.

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