Studies show how the people of Rapa Nui made and moved the giant statues - and what caused the island's deforestation
Drones, physics and rats: Studies show how the people of Rapa Nui made and moved the giant statues and what caused the islands deforestation
Published: November 26, 2025 2:01pm EST
Carl Lipo
Professor of Anthropology and Associate Dean for Research, Binghamton University, State University of New York
(
The Conversation) Rapa Nui, also known as Easter Island, is often portrayed in popular culture as an enigma. The rationale is clear: The tiny, remote island in the Pacific features nearly 1,000 enormous statues the moai. The magnitude and number of these monuments defy easy explanation.
Since European ships first encountered these stone giants in the 18th century, outsiders have branded the island as fundamentally mysterious, possibly beyond archaeologists ability to explain. This characteristic is part of what makes the island famous. Tour operators market the inexplicable. Documentaries promise unsolved puzzles. Popular books ask how primitive people could possibly move 70-ton megaliths.
....(snip)....
Previous attempts to understand Rano Raraku failed not because the quarry held impenetrable secrets but due to the lack of published documentation and the limitations of traditional mapping methods. Two-dimensional maps couldnt capture three-dimensional relationships. Statues emerge from cliff faces at various angles. Production areas overlap vertically. Carving sequences intersect across time. Traditional archaeological methods provided impressions but missed details and couldnt capture the system as a whole.
....(snip)....
Deforestation without collapse
The third mystery is how an advanced society could destroy its own environment. The island was deforested by the end of the 17th century. This mystery also yielded to systematic analysis. We analyzed data from previous archaeological excavations. Rather than finding increased rat consumption by people, indicating dietary stress from a lack of other food sources, remains of rats eaten by people decreased over time while seafood dominated throughout. .................(more)
https://theconversation.com/drones-physics-and-rats-studies-show-how-the-people-of-rapa-nui-made-and-moved-the-giant-statues-and-what-caused-the-islands-deforestation-270023