Learn about the world's greatest scientific fraud.
The world's most famous scientific fraud was the Piltdown man, a phony human fossil discovered in a gravel formation in southern England in 1912.
The unknown person combined an ape jaw with skull fragments of a modern man so skillfully that scientists argued over Piltdown man for about 40 years.
The forger filed the teeth in the ape jaw to give them the appearance of a human wear pattern. Chemical investigations in the 1950s showed the cranium and jaw were of different ages.