Thirty-two sets of twins are pictured at the Lingbao No 1 Primary School in Lingbao city, Central China's Henan province, September 25, 2014. The school found that its 4,000 first-grader students this year include 32 pairs of twins, which is rare. Eleven of the sets of twins are boy-girl pairs.[Photo/IC]

Related: 32 sets of twins among 4,000 first-graders