Have you ever seen a flying squirrel? Both southern flying squirrels and northern flying squirrels can be found in Pennsylvania. However, the northern flying squirrel is classified as state endangered and sightings are rare. Flying squirrels have a loose flap of skin between their fore and hind legs which allow them to glide through the air. They use their broad flat tails to guide their direction. Their "flights" are not often witnessed by humans since they are nocturnal. Lackawanna County Depu

Flying squirrels are secretive creatures, but if you're lucky, you might meet one. Or two. Or three! 🐿 BBC Four | BBC Earth