Archeologists have excavated around the heads and guess what they found? The heads have full bodies! The bodies are covered in ancient and as of yet indecipherable writings called petroglyphs.
“The reason people think they are [only] heads is there are about 150 statues buried up to the shoulders on the slope of a volcano, and these are the most famous, most beautiful and most photographed of all the Easter Island statues,” Van Tilburg, who is also a fellow at the Cotsen Institute of Archaeology at the University of California, Los Angeles, told Life’s Little Mysteries. “This suggested to people who had not seen photos of [other unearthed statues on the island] that they are heads only.”