Just How Rare are Quadruplets? The Chance of Conceiving Four Babies at Once
Earlier this month, a couple in Australia's family grew by four in a matter of minutes, when they welcomed monozygotic quadruplets via Caesarean section. Born prematurely at 28 weeks and four days (a gestational time when their lungs, digestive systems, and immune systems are still developing), the identical girls were naturally conceived after one single fertilized egg split into four...