Skull

Contents
Brain

Bone Cell

Calcium

Content Of
Head

Abomination Head

Mammal Head

Bird Head

Cetacean Head

Sea Monster

Space Monster

Space Animal Body

Visitor Head

If you browse through some remote planets and asteroid belts, then you should eventually come across a space animal that has a skull and a brain. The problem is that the skull already contains a brain so the space animal has two brains, the latter of which is not protected by a skull. This is an apparent glitch in the program.