Couple Has Rare One-In-A-Million “Black-And-White Twins” Twice
The unique situation is so rare, that there isn’t much data on the probability of this phenomenon, leaving the family and medical community in awe. It’s believed that two different sperms, carrying unique sets of DNA, impregnated two separate eggs during fertilization. Without much research to turn to, the family just assumed their girls were two in a million–until they conceived again.
