Hi there!
For this post I read the next article: http://santiagotimes.cl/us-scientists-debunk-moai-myths-on-chiles-easter-island/
This article talks about the Rapa Nui island, specifically how the prehistoric inhabitants of the island mobilized the famous statues called moai. National Geographic did an experiment to understand how the moai were moved, believing incredible that had been mobilized vertically, it had also refuted the theory that had been mobilized with palm trunks. Then the scientists conducted an experiment to show that if is possible move the moai in that way.
I think this project was lacking of communication with the inhabitants of the island because they aren't  mentioned in the article and that aspect  is fundamental to know information about an ancient culture.