A tale of two squirrels

Until recently, North America had two native species of flying squirrel, the Northern flying squirrel and the Southern flying squirrel (such creative naming!). These two species are in the same genus, Glaucomys, and are closely related: so close, in fact, that in the northeast where their ranges overlap, they sometimes interbreed! But far, far away in the forests of the Pacific northwest dwells a mysterious population of Northern flying squirrels…and a group of scientists was determined to find out why.

The original research published in the Journal of Mammalogy can be accessed here ($). There’s also a nice piece discussing this paper in National Geographic if you’d like more details!

Infographic PDF available here.flyingsquirrels

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