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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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The velvet belly lantern shark may spend hours at depths greater than six times the height of the Empire State building. Glowing at such depths may camouflage the animals or help them signal to potential mates.
Credit: Pierluigi Angioi
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