The warden who checked this cougar told us about it, here's more info about it:
News Video
Deformed mountain lion a mysteryA hunter tracking down a mountain lion has stumbled upon a biological mystery.
Fish and Game officials say a male mountain lion involved in an attack on a dog near Preston, Idaho, was killed last week near the Utah border.
What the hunter discovered after examining the corpse can only be described as bizarre, even monstrous.
A photo released Thursday by Idaho Fish and Game shows the big cat had another set of fully-formed teeth and whiskers growing out of the top of its head. Wildlife officials say they have never seen a deformity like that -- but have offered up several theories.
They say it's possible the teeth could be the remnants of a conjoined twin that died in the womb and was absorbed into the other fetus. They then grew on their own.
Another explanation is a so-called "teratoma" tumor. This type of abnormality, whose Greek name translates to "monster tumor," can grow teeth and hair. In humans, it can grow fingers and toes.
full story:
http://www.cnn.com/2016/01/09/us/idaho-deformed-mountain-lion/