Animals use scent to communicate with each other and to mark their territory. The term 'animal scent' can refer to a variety of smells, including spoors, musks, odors, lilacs, and pines. Spoors are the tracks or trails left by an animal, while MUSK is a strong-smelling secretion produced by certain animals. ODOR is a general term for any smell, while LILAC is a sweet-smelling flowery scent and PINE is a sharp, woody scent. All of these scents are used by animals to communicate with each other and to mark their territory.