© ReutersA view of a Moai statue near the town of Hanga Roa on Easter Island, 2,486 miles west of Santiago, Chile October 19, 2003.
Rapa Nui, Chile - or Easter Island - has monumental statues with massive, stone hats placed on top of them.
A recent analysis of these stone hats, known as pukao, shows that the petroglyphs etched into the stone vary wildly, according to a study published in October in
Advances in Archaeological Practice. The diversity of the drawings revealed that they were unlikely to be associated with warfare, which counters the common theory that the ancient people of Rapa Nui were a warrior culture.
"The diversity of the petroglyphs challenges that these were symbols of warfare between groups," Carl Lipo, co-author of the study and anthropology professor at Binghamton University, told
Newsweek by email. The findings of the study uncovered "quite a bit of diversity in the petroglyphs of the pukao-more so than have been traditionally noted given that we documented all the pukao surfaces."
Polynesians colonized Rapa Nui around 800 years ago, according to the study. They constructed nearly 1,000 monumental statues, called moai, which were topped with the pukao. The pukao are large cylinder-shaped stones made from volcanic rock known as red scoria, weighing multiple tons each. The largest stone hat is nearly seven feet in diameter and weighs over 25,000 pounds. Prehistoric islanders moved the heavy volcanic rocks as far as 7.5 miles.
Comment: Further reading: High in the Andes, Keeping an Incan Mystery Alive