Chinese astrology, or Sheng Xiao (生肖), is an ancient astrological practice that can be traced back to the Han Dynasty. This kind of astrology is founded on the concepts of yin and yang, with significant elemental, natural, and lunar influences. Similar to Western astrology, Chinese astrology has 12 zodiac signs—which are represented by animals. However, in Chinese astrology, the zodiac sign seasons last all year long—as opposed to Western astrology’s four-week seasons.