40 years later scientists proved that the Piltdownman was a deliberate attempt at paleontological fraud.
40年后,科学家证明了皮尔丹人只是古生物学家们处心积虑的欺诈。
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The Piltdownman is a famous hoax in which pieces of a skull and jawbone found in 1912 were believed to be the fossilized remains of an early form of human being.