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Nature 420, 472 (5 December 2002) | doi:10.1038/420472a

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Conservation biology: Lone wolf to the rescue

Pär K. Ingvarsson

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Genetic analysis has revealed how a small and isolated population of grey wolves found salvation in the form of the genetic variation offered by a single, immigrant male.

Human influence has led to the decline of many animal species and fragmentation of their populations. One consequence is loss of their genetic diversity.