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 Full grown Fancy Mice reach a length of 9-10 cm in length from nose to the base of the tail and the tail is approximately 8-9 cm in length. The head is pointed and the tail is hairless. The mouse is a sociable pet appreciating the company of others. Mice are mainly nocturnal becoming more active in the evenings and during the night. Mice are good natured and inquisitive making them extremely good pets. The average lifespan is 1½-2 years although they can live longer and up to 3 years has been known. The average lifespan is 1½-2 years although they can live longer and up to 3 years has been known. The average lifespan is 1½-2 years although they can live longer and up to 3 years has been known. The average lifespan is 1½-2 years although they can live longer and up to 3 years has been known.
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