Orkney vole

The Orkney vole (Microtus arvalis orcadensis) is a population of the common vole (Microtus arvalis) found in the Orkney Islands, off the northern coast of Scotland, United Kingdom. Orkney voles are larger than voles from other populations of the common vole. The common vole does not occur elsewhere in the British Isles.

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• Cute orkney vole
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• References

The Orkney vole occurs on five islands:

In the past the populations on each of these islands have been named as subspecies, and the Orkney vole as a whole is considered by some taxonomists to be a subspecies of the common vole because of its size difference from the common vole. However, others do not recognise any subspecies of the common vole, especially since DNA analysis indicates transport by Neolithic humans from Belgium. Orkney voles do not occur in mainland Britain, nor elsewhere in the British Isles, and they are thought to have been introduced to the Orkney archipelago by humans in Neolithic times. The oldest known radiocarbon-dated fossil of Common Vole in Orkney is 4,600 years old: this marks the latest possible date of introduction. The likely source areas for Orkney voles are what is now Belgium.