Can Twins Have Different Biological Fathers?

Yes, it is possible for twins to have different fathers, a phenomenon known as heteropaternal superfecundation. This occurs when a woman releases multiple eggs during ovulation and has s£xual intercourse with different partners within a short timeframe. If each partner’s sp£rm fertilizes a separate egg, the result is fraternal twins with different biological fathers.

Unlike identical (monozygotic) twins, who originate from a single fertilized egg, fraternal (dizygotic) twins develop from two separate eggs fertilized by two different sperm. The timing of ovulation plays a crucial role in heteropaternal superfecundation, as the eggs must be released close ...