We've written about two-faced cats before . But not in the literal sense.
Frank and Louie is a 'Janus cat'
Why Janus? Well, in ancient Roman mythology, Janus was a god with two faces.
Image by AP
The technical name for that is Disprosopus, or craniofacial duplication
Janus cats appear to be conjoined twins, but their condition is actually the result of incomplete separation of two embryos in the womb. It's triggered by a protein called sonic hedgehog homolog (SHH). Yes, there's a protein called the sonic hedgehog protein.
Image by AP
Most cats with the condition die within hours, but Frank and Louie is now 13 years old
Which has earned him a place in the Guinness Book Of Records as the oldest living cat with Disprosopus.
His original owner wanted to have him put down
He was initially brought into a pet hospital when he was a day old.
Image by AP
