2070 (the establishment of Xia Dynasty)-15( 15 years)+100( 100 years old) =2 155. Dayu was born on 2 155. 2 155 BC plus 2012: 2155+2012 = 4167. Divide 4 167 by 12. Zodiac ranking: (4167+1) ÷12 = 330. Eight years old is a chicken. Scientific proof: Dayu Zodiac is a chicken.