Charles G. Sibley
1917-1998
American molecular biologist who during the 1980s adopted a controversial technique for comparing the DNA of different species to document ranges of genetic differences.
Sibley applied this technique to the problem of human-chimp-gorilla phylogeny. He reported that humans were, genetically, closer relatives to chimpanzees than to gorillas; it was previously thought that humans were equally related to both. In a series of papers, Sibley claimed that his procedure was genetic, precise, replicable, and quantitative. However, his work was subsequently discredited.
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