Have you ever heard of a white squirrel? Or better yet, have you ever seen one? Many people are surprised to hear they exist. But as it turns out, while rare, there are white squirrels out there! In fact, there are a few different types of white squirrels. The most common are white morphs of the eastern grey squirrel, and they're found across the deciduous forests of the US. But where did these squirrels come from, and how might you go about finding that out?