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Topic: Animals: Insects There's a continuous population explosion of flies. At least one in every ten animals on Earth is a fly. This is an in-depth look at the many varieties that constitute one of the largest animal groups in the world. Contents: Flies, Flies, Everywhere Two WIngs Up Close The House Fly Birth of a Fly Mosquitoes Are Flies The 'Bad' Flies The 'Good' Flies To Find Out More Important Words Index Meet the Author
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