Interesting that the title of the article is different on the print and web versions.
Being sensitive to loud sound myself, I sympathize with them.
http://www.sciencenews.org/view/generic/id/71771/title/Noise_is_what_ails_beaked_whales
By Rachel Ehrenberg April 23rd, 2011; Vol.179 #9 (p. 16)
Navy sonar unquestionably disturbs beaked whales, concludes a new analysis investigating how underwater sound affects these elusive deep-divers. The results, published online March 14 in PLoS ONE, suggest that the current noise levels deemed risky for beaked whales need to be lowered.
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