Rare Biological Phenomenon Revealed: Twins Born with Different Fathers
Michelle and Lavinia Osbourne, twins born in the UK, discovered through a DNA test that they have different fathers, a rare occurrence known as heteropaternal superfecundation. This phenomenon occurs when a woman releases multiple eggs in one cycle, which are fertilized by sperm from different men. The twins, now 49, were born minutes apart to the same mother but are half-sisters. This revelation was part of a BBC Radio 4 series, highlighting the rarity of such cases, with only about 20 documented worldwide. The discovery was emotionally challenging for Lavinia, who felt a strong bond with her sister due to their shared difficult childhood. 
