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Earth & Environment

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a painted lady butterfly (Vanessa cardui) resting on vegetation

GOING THE DISTANCE  Painted ladies travel 12,000 km each year, farther than any known butterfly migration.

world map of submarine fiber-optic cables

MOTION OF THE OCEAN FLOOR  The network of submarine fiber-optic cables that deliver work e-mails and cat videos to computers around the world could double as undersea earthquake detectors. Existing cables are shown in purple; planned cables are in blue.

researchers with a narwhal

TURN IT UP  Researchers put an acoustic tagging device on a male narwhal to record its underwater clicks, buzzes and calls.  

Earth & Environment

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