The mane is the long coarse hair that grows from the crest of the neck of certain mammals, including the lion, horse, gnu, cheetah, and giraffe. In horses, it grows from the poll—the area between the ears—down to the withers—the area between the shoulder blades—and includes the forelock, the lock of hair that grows from or falls on the forehead. Grooms may leave manes looking natural or they may thin, braid, band, or shave off this hair. What purpose is the mane thought to serve? Discuss
Source: The Free Dictionary