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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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Branching out

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Progress in resolving the genetic relationships among vertebrate species has accelerated steadily. This figure shows the increase in the percentage of tree branching points, or nodes, determined for the major vertebrate groups since 1993. Credit: R. Thomson and H. Shaffer/BMC Biology

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