Snowy tundras are cold, treeless regions found in the Arctic and Antarctic. They are characterized by a layer of permanently frozen ground called permafrost, which prevents the growth of large plants. During winter, these areas are covered in snow, creating a stark, white landscape. The climate in snowy tundras is harsh, with long, frigid winters and short, cool summers. Despite the extreme conditions, some hardy plants, like mosses and lichens, can survive. Animals such as arctic foxes and caribou have adapted to this environment, finding ways to thrive in the cold.