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Published online by Cambridge University Press: 21 February 2012
An unusual case of uncertain twin paternity is presented. New research on inbred strains of mice may hold important clues for paternity testing of twins in the future. Next, four recent twin studies examining selected topics in autism, color perception, language development and high-order pregnancy risk are reviewed. Finally, several unusual twin-related situations are variously considered with respect to their research significance and practical applications.