Two Headed Animals  

Two headed animals are rare and unusual. They tend not to survive for long and because of this, you've got to wonder how many of these images are photoshopped. The mutation is called polycephaly, Each head of a polycephalic animal has its own brain, and they somehow share control of the organs and limbs, though the specific structure of the connections varies. Animals often move in a disoriented and dizzy fashion, with the brains "arguing" with each other; some animals simply zig-zag without getting anywhere, very few live to adulthood.