The mane is the term, when speaking of a horse or lion, used to describe the line of hair along the spine of the neck, starting behind the ears and ending just above the withers. When the horse/lion is born, the mane is a short, stiff, upright row of hair, not unlike a zebra's, but as the horse/lion ages the mane grows out and softens.
Pictures of Manes
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Mane is the name of several communes in France: