/oss/taxonomy/term/6936/all en /oss/article/medical-student-contributors-did-you-know/how-have-twins-different-fathers <p>Yes, it is possible to have twins with different biological fathers. The scientific term for this anomaly is “heteropaternal superfecundation,” and it’s <i>super</i> cool. “Heteropaternal” signifies different fathers and “<a href="https://pubmed.ncbi.nlm.nih.gov/32343851/">superfecundation</a>” means the fertilization of two ova during the same menstrual cycle by separate mating actions. In other words, it is a phenomenon where a second egg is released, and two acts of sexual intercourse can lead to the fertilization of these eggs by two different sources of sperm.</p> Fri, 16 Jun 2023 15:19:35 +0000 Haleh Cohn 9547 at /oss