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Director / Editor: Victor Teboul, Ph.D.
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Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

When is a species really extinct?

By Arne Mooers, Professor, Biodiversity, Phylogeny & Evolution, Simon Fraser University
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Species are declared extinct when there have been no verifiable sightings for 50 years. Declaring a species extinct has implications for conservation efforts and policies.The Conversation


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