Journal Article Reassessing Threats to Biodiversity: Two Replies Get access Norman Myers, Norman Myers Senior Fellow World Wildlife Fund—US, Oxford, UK Search for other works by this author on: Oxford Academic Google Scholar Thomas D. Sisk, Thomas D. Sisk National Biological Service US Department of Interior, Washington, DC 20240 Search for other works by this author on: Oxford Academic Google Scholar Alan E. Launer, Alan E. Launer Center for Conservation Biology Stanford University, Stanford, CA 943O5 Search for other works by this author on: Oxford Academic Google Scholar Kathy R. Switky, Kathy R. Switky Center for Conservation Biology Stanford University, Stanford, CA 943O5 Search for other works by this author on: Oxford Academic Google Scholar Paul R. Ehrlich Paul R. Ehrlich Center for Conservation Biology Stanford University, Stanford, CA 943O5 Search for other works by this author on: Oxford Academic Google Scholar BioScience, Volume 45, Issue 6, June 1995, Pages 379–380, https://doi.org/10.2307/1312714 Published: 01 June 1995