A new theory about who built the iconic human-like figures on Easter Island has sent shockwaves through the archaeological community.

Most historians agree that the stone structures were constructed by Polynesians around 900 years ago. However, Graham Hancock, a British writer and explorer, claims they are more than 11,000 years old.

Easter Island is home to approximately 1,000 large stone heads, known as Moai, scattered across the island.