Mount of a lemming, a small rodent usually found near the Arctic. Fossil evidence shows that lemmings lived alongside Woolly mammoths in the Colchester area during the Pleistocene period. This species now lives on the Fennoscandian Peninsula - an area including parts of Finland, Norway, Sweden and Russia. They spend the winter in nests under the snow but when it thaws in spring they move to lower ground, where they spend the summer.