In September, more than a dozen whales beached themselves in the Canary Islands. Rescuers tried to water down the whales and keep them cool. But all of them
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died.
Nearby, NATO naval forces were
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echo sounding devices meant to
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an enemy"s submarines, and public
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of the deaths ultimately came to
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suspicions of a link between whale distress and loud ocean noises.
The theory is
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the mammals seek to
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the roar of the deep, rush toward the surface and in some cases end up going ashore.
For decades, environmentalists have worked to reduce the undersea noise—usually with
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success, given the growing industrialization and militarization of the oceans. They have
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suits and waged letter-writing campaigns,
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a recent petition that asks the United States Navy to
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its testing of underwater sound equipment.
The discovery by biologists in Hawaii that whales can
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the sensitivity of their hearing to protect their ears from loud noise
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another dimension to the debate.
Michael Jasny, a senior policy analyst, called the research fascinating and said he hoped it would prove
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in protecting whale hearing from these threats.
But he
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the finding as a work in
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that posed many unanswered questions.
"A lot more work needs
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," he said. "Could it be replicated in the wild It"s a huge question."
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whales could learn to decrease the sensitivity of their hearing, Mr. Jasny said, that would
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only a relatively small part of the oceanic noise problem. "It"s important to understand that it"s
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," he said of the proposed method. "It won"t be a silver bullet."