Though moai are whole-body statues, they are commonly referred to as "Easter Island heads". This is partly because of the disproportionate size of most moai heads and partly because, from the invention of photography until the 1950s, the only moai standing on the island were the statues on the slopes of
Rano Raraku, many of which are buried to their shoulders. Some of the "heads" at Rano Raraku have been excavated and their bodies seen, and observed to have markings that had been protected from erosion by their burial.