See, his face is split almost mathematically down the middle. It's bizarre.
Whilst the exact cause of Narnia's face is not fully understood, it's usually down to a genetic anomaly called chimerism, whereby - in the case of male cats - an extra X chromosome was present at the embryonic stage of his development .
However, his owner Stephanie Jiminez has had testing done on him which revealed that he isn't a chimera.
That's even more unusual.
Well, we're not going to get to the bottom of Narnia's specific case here, but the point is, he's managed to successfully father two adorable kittens, one grey, one black.
Three-year-old shorthair crossbreed Narnia has now lent his peculiar genes to his two offspring, grey-haired Phoenix and black-haired Prada.
Thirty-four-year-old Jiminez, who is a professional cat breeder, explained: "A geneticist performed tests and [found] Narnia has only one DNA... there remains a mystery for science.
"He also has beautiful blue eyes, which is very rare in a cat that is all black. Normally blue eyes are often found in white cats."
So he's black, grey, and white?
She added: "When Narnia was born I was extremely surprised. I knew immediately that he was exceptional.
"Narnia was born with a double black and grey face, which is very rare - normally a cat cannot be black and grey."
Well, this one bloody well can. That's for sure.
So, Narnia is originally a French cat, having come from Paris. He now lives his life in Britain with his owner.
Since the two kittens were born last year, Phoenix has subsequently found a forever home after being adopted by a family, and Prada is shortly to move into her new home.
As for Narnia - well - he's going to remain with his owner and hopefully he'll be allowed to continue to breed.
You can only imagine the kind of kittens that he might keep fathering if he's allowed to continue on unabated.
While we may never understand exactly what caused his rare and inexplicable hair colouring, we could at least marvel at litter after litter of cute kittens bearing his extraordinary genes.
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