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Theodosius Dobzhansky
Geneticist and evolutionary biologist (1900-1975).
Born January 25th, 1900 in Nemyriv. [ref]
Died December 18th, 1975 at 75 years old in San Jacinto (heart failure).
Occupations
biologist, entomologist, evolutionary biologist, geneticist, naturalist, population geneticist, university teacher, writer, zoologist
Wikipedia
Count your age by friends, not years. Count your life by smiles, not tears. John Lennon