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While McDonald's in the U.S. is focusing on making their Happy Meals healthier, in the U.K. they're trying to make them smarter -- by replacing the traditional toy that accompanies the meals with a book.

Under the plan, Mickey D's plans to distribute 15 million books over the next two years after teaming with the National Literacy Trust, Dorling Kindersley and WH Smith. The currently featured books are in the Amazing World series, which focuses on star and planets, big cats, the rainforest and the Arctic and Antarctic.

Source: The Daily Meal