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A declaration of extinction is a statistical statement - we can’t check under every rock in the world. If we have done a bunch of checking for a species under a
by jl6 4y ago
A declaration of extinction is a statistical statement - we can’t check under every rock in the world. If we have done a bunch of checking for a species under a bunch of its favorite rocks, and found nothing, the odds are high that it is extinct. But sometimes species beat the odds and a later rock-check finds one after all.
- thret 4y agoAnd then they keep collecting them for research until there are no more to be found, and we can once again classify them as extinct. "Subsequent visits to the same locality did not yield any additional shells or living animals."