Skulls
Skulls do more than just protect the brain — they also stimulate the mind. Often symbols of mortality and power, they have been employed in human ceremony, ritual, and art for tens of thousands of years. From the ancient animal skulls in Paleolithic burial sites to the curlicued cattle skulls that float like spirits over Georgia O’Keefe’s canvas mountains, cultures around the world have turned to skulls to express ideas about both life and death.