Now this is creepy.

A mountain lion with with a second set of teeth and whiskers growing out of its forehead was legally shot and killed in Idaho last week after the big cat allegedly attacked the hunter’s dog:

Sorry, not from an episode of the “X Files.” Scientists think the deformity might have been a cojoined twin that died in the womb or a teratoma tumor which allows “teeth, hair, fingers and toes to grow.”

Or probably caused by global warming, right?