Blue foxes, and what can happen when new-comers infiltrate a small population

Arctic foxes are endangered in Sweden, Norway and Finland, scattered in isolated populations. And a group atop the highest mountain in southern Sweden, Helagsfjället, six white foxes settled in 2000s.

In 2010, a local ranger noticed his foxes had changed color, to “blue”. The influx of new foxes provides an interesting opportunity to study the importance of migrants in small and isolated populations.

And, importantly, it affords me the opportunity to talk about blue foxes, and at the end of the day, that’s also pretty awesome. Read about it here!

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