A fox with rare black fur made a brief roadside appearance in Yellowstone National Park last week. The fox’s coloring is ...

A slumbering Arctic fox in winter will wrap its long, bushy tail around its body for added warmth. Its feet are covered in dense fur to insulate against the cold and provide traction on the ice.

while “blue” Arctic foxes are a slate gray or black color year round. The Arctic fox pelt is thought to be the warmest fur of any arctic animal, and they are hunted and farmed for this fur.