radium foxes are an extinct color morph of the silver fox first noted in 1935 on a farm in Shawano, Wisconsin by Fred Eberlein. above are the only known taxidermy specimens (x) of the variation before becoming extinct in Wisconsin in the 1940′s. the radium foxes are described by a Wisconsin newspaper as being “all white, except for a blue-black undercoat”. interestingly enough the radium fox may not be extinct in European fur farms under the name “slate glow”.
above is a “slate glow” fox (photo credit to uniquefoxes on Instagram, used with permission), the fur appears to be a white color with a dark blue-tinted undercoat that shows around the eyes and ears. although not identical to the taxidermied foxes from Shawano, Wisconsin, they share a striking resemblance.
(fur close up by ChallengersVeir)
