This video from Britain says about itself:
7 May 2016
Sir David Attenborough looked into the history of the statues on the remote Easter Island to discover how these astonishing monuments were first created.
Analysis of remains found on Rapa Nui, Chile (Easter Island) provides evidence contrary to the widely-held belief that the ancient civilization recklessly destroyed its environment: here.
How do you put a 13-ton hat on a giant statue? That’s what a team of researchers is trying to figure out with their study of Easter Island statues and the red hats that sit atop some of them: here.