DNA from fossils reveal the origin of the Norwegian lemming
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A new ancient DNA study shows that the Norwegian lemming has a unique history. In contrast to other mammals in Fennoscandia, the Norwegian lemming may have survived the last Ice Age in the far north, sealed off from the rest of the world by gigantic ice sheets. This conclusion is drawn by an international team of researchers in an article published this week in the journal Molecular Ecology.
Full article: Down to the roots of lemmings: a new species of basal lemming from the upper Pliocene of West Siberia
Conflicting nuclear and mitogenome phylogenies reveal ancient mitochondrial replacement between two North American species of collared lemmings (Dicrostonyx groenlandicus, D. hudsonius) - ScienceDirect
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PDF) On the origin of the Norwegian lemming
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