For years it was stated that men had forty-eight chromosomes in their cells; there were pictures to prove it… — Michael Crichton

For years it was stated that men had forty-eight chromosomes in their cells; there were pictures to prove it, and any number of careful studies. In 1953, a group of American researchers announced to the world that the human chromosome number was forty-six. Once more, there were pictures to prove it, and studies to confirm it. But these researchers also went back to reexamine the old pictures, and the old studies — and found only forty-six chromosomes, not forty-eight.

Leavitt's Rule of 48 said simply, "All Scientists Are Blind."

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