In what way does something function?
One reader inquired, “Does this indicate that they have identical DNA?” while another pondered, “How are they genetic brothers exactly?” And a third simply said, “Never heard of that before.” Fortunately, there were some who did comprehend the predicament and were able to enlighten their bewildered peers.
Naturally occurring
An informed commenter chimed in, “Their mom and dad are identical twins.” That led to offspring for both sets of parents. They originated from the same genetic material. Does that even make sense? In response, someone another chimed in, “Identical twins share the same DNA, and both sets of parents are identical.” Perhaps the most entertaining was, “If this family did an Ancestry DNA test, it would show these newborns as siblings, not cousins!”