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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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A natural selection

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Analyses suggest that the impressions were made as the shark bit its prey, as seen in this artist’s reconstruction. Credit: T. Scheirer/Calvert Marine Museum

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