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In the February 25 Issue:

TABLE OF CONTENTS
Consciousness Emerges: Somewhere along a tangled path, sights, sounds and insights pop into awareness
Making Waves: Japanese quake gave scientists an unprecedented look at a big tsunami
Lessons from the Torpid: Hibernators have some helpful tips for keeping humans healthy

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Bad Breath

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New studies detail how the invisible particles—emitted from sources like vehicle exhaust and power plants—that pollute the air can damage heart, lungs and genetic programming. Credit: From left: Alohaspirit/istockphoto; Egdigital/istockphoto

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