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Journal Article The Biological Diversity Crisis: Despite unprecedented extinction rates, the extent of biological diversity remains unmeasured Get access Edward O. Wilson Edward O. Wilson Search for other works by this author on: Oxford Academic Google Scholar BioScience, Volume 35, Issue 11, December 1985, Pages 700–706, https://doi.org/10.2307/1310051 Published: 01 December 1985
Edward O. Wilson (Sun,) studied this question.