Conversation so far:
What was Thor Heyerdahl doing in 1955?
In 1955–1956, Thor Heyerdahl organized the Norwegian Archaeological Expedition to Easter Island.
Who was apart of Thor Heyerdahl's team which went to Easter Island?
Thor Heyerdahl's expedition to Easter Island's scientific staff included Arne Skjølsvold, Carlyle Smith, Edwin Ferdon, Gonzalo Figueroa and William Mulloy.

Question: What did they do while there
Self-contained rewrite: What did Thor Heyerdahl and the other expedition team members do while in Easter Island in 1985?