The division into Yin and Yang can also be seen in the numbers of toes on the feet of the 12 zodiac animals. Those with an even number of toes are Yin, while those with an odd number are Yang.
從陰陽來分，子寅辰午申戌為陽，丑卯巳未酉亥為陰，陰陽之分別又在於生肖足趾數目，偶數為陰，奇數為陽。