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Tremendously funny and thoughtful
viruses known as phages attack and destroy bacteria while leaving all other life forms
Used throughout human history for food
Great Big Book of Really Hard Puzzles Genevieve Rosen-Biller answer callsUp for a challenge? The Great Big Book of Really Hard Puzzles is just that a huge Highlights activity book packed with extra difficult puzzles that will challenge even the most experienced solvers ages 8 and up. This kids puzzle book is filled with brain teasing, mind twisting puzzles that will test, entertain and delight. Every puzzler can discover something that excites them, and grown ups might even want to try their hand at these hard puzzles!
