Man's Unborn Twin is the Biological Father of his Son

So I was reading this article: Man Fails Paternity Test Because Unborn Twin Is The Biological Father Of His Son

And while it sounds like a headline you'd read on the front of one of those trashy magazines right next to 'My Pet Cat Controls my Husband's Mind', it's actually real. Mind blown.

You'll have to read the article for yourself to get all the details of it, but the short version is that the guy in question got fertility treatment with his wife done at a clinic. Originally they assumed samples got mixed up when the babies blood type was off based upon that of the parent's.

After lots of testing they discovered the father was a chimera. Two separate DNA's in one person. His semen was 90% his DNA, and 10% the DNA of his twin brother, that is part of him.

Crazy right?

I can't imagine getting news like that. Finding out that my twin is literally part of me. It makes me curious about some cases of multiple personality disorder. I wonder if a small portion of them are a result of chimerism?

We don't really know where consciousness is stored, and if a body can hold two separate DNA's what's to say there can't be two separate consciousnesses? I can't imagine how confusing that would be.

Floid, a Maine Coon Chimera

There's tons of cases of conjoined twins, some of them more extreme than others, but in those cases it's obvious there is more than one being present. In a case like this though it's the existence of two separate people in one otherwise seemingly normal body.

Venus, a Tortoiseshell Chimera

But why the 90/10 split? What makes the one geneticism so dominate? Is it that way with other functions in the body?

We say that the twin was unborn, absorbed into his/her sibling, but how do we know that another consciousness doesn't exist?

Just goes to show there's so much we don't understand yet.