Did a Pig Make a Monkey out of Scientists?
Statement
This is a story that creationists like to tell to show how absurd
scientists are. In 1922, a tooth of a prehistoric pig, discovered in
Nebraska, was misidentified as the tooth of a prehistoric man. A whole
early man, "Nebraska Man," was reconstructed from it before
the tooth was correctly identified in 1927. Creationists imply that if
scientists can't tell the difference between a pig and a man, how can
they be trusted to identify anything correctly?
Actually, the episode highlights two virtues of science: its
openness to possibilities and its self-correcting nature. Pig and
human pre-molars look similar, so it was a reasonable mistake. It was
two teeth, not a single tooth, that were in question. It was not
immediately embraced by the whole scientific community as an early
man, but was examined as a possible early anthropoid relative. It was
not scientists who reconstructed the whole person from the teeth, but
a tabloid, the Illustrated London News. Within five years of the
release of the teeth to the scientific community, they had been
correctly identified and the early anthropoid hypothesis was
discarded.
Far from showing scientists as absurd, the episode shows that
scientists are open-minded about new hypotheses, have processes for
testing them, and discard them if they prove wrong.