House mouse; courtesy of Wikimedia Commons/George Shuklin Four-legged stowaways hitched a ride aboard the wooden 10th- and 11th-century Viking ships that braved the northern seas.
Read More »House mouse; courtesy of Wikimedia Commons/George Shuklin Four-legged stowaways hitched a ride aboard the wooden 10th- and 11th-century Viking ships that braved the northern seas.
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