An AI heifer was born with two faces in Viriginia.  Though the article keeps calling the baby a 'calf', it also calls the little one a 'she'. 

The farmer AI'd the mom cow for the heifer, to get a good animal genetically.  This kind of deformity can happen usually when twins do not completely seperate after starting development, so it is possible the heifer is still good genetically. 

I wonder if there are two brains in the braincase, and, if so, what the poor little buggers think about all this.