For one, squirrels are longer and heavier than chipmunks. Also, squirrels and chipmunks have hair that differs in color and ...

Their eyes are large, helping these nocturnal mammals navigate the dark, and their fur color and markings vary by species. Some flying squirrels have only one mating cycle per year but others ...

Meanwhile, albinism affects all pigments and is caused by a genetic mutation that prevents the production of melanin, which is the pigment that colors skin, fur and eyes. A rare white squirrel was ...