To many people, worms seem like creepy creatures indeed. Lacking lungs, eyes, and limbs, they breathe through their skin and use their bodies to sense brightness and vibrations. Some worms can be very long, like the bootlace worm, while others are shorter, like the common earthworm. Through vivid photographs and easy-to-understand text, this book explains to young readers exactly what a worm is, how worms live, what unique features help them to prosper underground, and why they're good for the soil in ecosystems around the world

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