The mountain lion (above) was killed legally by a hunter near Preston, Idaho in the U.S. The Idaho Department of Fish and Game, who released the image was shocked to find a set of teeth on its forehead. It is thought that the teeth are either the leftovers of a twin that died in the womb or it might have been a tumour.
Mountain lions are common in Idaho and come into contact with humans on a regular basis. Image Source: Screenshot/IDFG/2016