The Serpent Seed and The Literal Descendants of Satan: The Heteropaternal Superfetation of Cain and Abel
Superfetation is rare in this modern age, but we are talking about The Garden of Eden. Humankind was in a very early and rare developmental state of biological manifestation. How can we really know what was possible and not possible in The Garden? It reflects extreme hubris to even posit certainty regarding that epoch, apart from what The Bible might reveal. What's more rare is a Lucifer impregnating Eve, or The Immaculate Conception of The Virgin Mary. If we look to modern studies on the likelihood of Heteropaternal Superfetation back in The Garden of Eden, we are bowing down to the very same epistemological cartels that claim Mary's virgin birth of Jesus Christ was impossible, and much more that The Bible teaches, which Secular Humanists and Atheist Scientists will never allow. Worshipping the work of Atheist Scientism Priests who stand as gatekeepers of secular peer-review in order to discount and disqualify The Lord's roll in early events, as well as discount the supernatural quality of that particular epoch in time, is an old Jesuit game of Epistemological Autocracy, and a very dangerous game for Christians to fall privy to.
The Modern View of Heteropaternal Superfecundation:
Heteropaternal Superfecundation is common in animals such as cats and dogs. Stray dogs can produce litters in which every puppy has a different sire. Though rare in humans, cases have been documented. In one study on humans, the frequency was 2.4% among dizygotic twins whose parents had been involved in paternity suits.
In mammals, it manifests as the formation of an embryo from a different menstrual cycle while another embryo or fetus is already present in the uterus. When two separate instances of fertilization occur during the same menstrual cycle, it is known as superfecundation.
Humans
While proposed cases of superfetation have been reported in humans, the existence of this phenomenon in humans has been deemed unlikely. Better explanations include differential growth between twins due to various reasons such as twin-to-twin transfusion syndrome. Artificially induced superfetation has been demonstrated, although only up to a short period after insemination.
A 2008 French study found evidence to suggest that superfetation is a reality for humans, but that it is so rare that there have been fewer than 10 recorded cases in the world.
In 2017, it was reported that an American woman who had agreed to act as a surrogate for a Chinese couple bore two babies initially believed to be twins. Before the adoptive parents could return home to China, however, it was discovered that one of the babies was, in fact, the biological son of the surrogate. Doctors confirmed that the birth-mother had become pregnant with her and her partner's child roughly three weeks after becoming pregnant with the Chinese couple's child.
There have been multiple cases reported to local US doctors with a week or less difference in age of twins and women who report two surges of ovulation occurring within a few days of each other. Though rare, this condition is believed to affect as many as 0.3% of women but often one twin is lost so the true numbers are not known.[citation needed] Research has found 10% of women released two eggs in a cycle, but both at the end of the same "wave" of follicullogenesis, which does not support the theory of superfetation in humans.
In September 2020, a woman in Wiltshire, England, gave birth to fraternal twins who were conceived three weeks apart.