Ground Report

A Chinese man is suing for divorce after discovering that he is the father of only one of his twins. Liu Yuan of Nanjing city says he noticed the difference between the babies the day they were born. “The baby that came out first was much bigger than the second, who was very weak and sickly,” he said. Liu says he started to be suspicious when the smaller baby turned out to have a different blood type. Liu had his own and the two babies’ DNA tested — and discovered that he was the biological father of only one twin. “My wife admitted that she’d had sex with her ex-boyfriend after we got married,” he said. Doctors explain that it’s quite rare, but possible, since a man’s sperm can survive for 72 hours in a woman’s body.