Darrell A. Posey
Darrell Addison Posey (March 14, 1947-March 6, 2001) was an American anthropologist and biologist who vitalized the study of traditional knowledge of indigenous and folk populations in Brazil and other countries. He called his approach ethnobiology and combined research with respect for other cultures, especially indigenous intellectual property rights.
An obituary described him as an "anthropologist who gave up scholarly detachment to fight for the rights of native peoples." He never married and was survived by his parents and brother. He died of a brain tumor, at 53 years of age, in Oxford, England, where he made his home after 1992.