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<p class=MsoNormal style='background:white;vertical-align:baseline'><cite><span
style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#333300;
border:none windowtext 1.0pt;padding:0in;font-style:normal'>Science</span></cite><span
class=apple-converted-space><span style='font-size:12.0pt;font-family:"Arial","sans-serif";
color:#333300;border:none windowtext 1.0pt;padding:0in'> </span></span><span
class=slug-pub-date><span style='font-size:12.0pt;font-family:"Arial","sans-serif";
color:#333300;border:none windowtext 1.0pt;padding:0in'>9 May 2014:</span></span><span
class=apple-converted-space><span style='font-size:12.0pt;font-family:"Arial","sans-serif";
color:#333300;border:none windowtext 1.0pt;padding:0in'> </span></span><span
style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#333300;
border:none windowtext 1.0pt;padding:0in'><br>
<span class=slug-vol>Vol. 344</span><span class=apple-converted-space> </span><span
class=slug-issue>no. 6184</span><span class=apple-converted-space> </span><span
class=slug-pages>p. 569</span><span class=apple-converted-space> </span><br>
<cite><span style='font-family:"Arial","sans-serif";font-style:normal'>DOI:</span></cite><span
class=apple-converted-space> </span><span class=slug-doi>10.1126/science.344.6184.569</span></span><span
style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#333300'><o:p></o:p></span></p>
<h1 style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:1.5pt;
margin-left:0in;line-height:12.5pt;background:white;vertical-align:baseline'><span
style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#333333'><o:p> </o:p></span></h1>
<h1 style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:1.5pt;
margin-left:0in;mso-line-height-alt:12.5pt;background:white;vertical-align:
baseline'><span style='font-size:18.0pt;font-family:"Arial","sans-serif";
color:#333333'>'Sea Butterflies' Are a Canary for Ocean Acidification<o:p></o:p></span></h1>
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</span></span></span></span><![endif]><span class=name><span style='font-size:
12.0pt;font-family:"Arial","sans-serif";color:#333333;border:none windowtext 1.0pt;
padding:0in'><a
href="http://www.sciencemag.org/search?author1=Eli+Kintisch&sortspec=date&submit=Submit"><span
style='color:#333333'>Eli Kintisch</span></a></span></span><span class=name><span
style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#333333'><o:p></o:p></span></span></p>
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</span></span></span><![endif]><span style='font-size:12.0pt;font-family:"Arial","sans-serif";
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<p style='margin:0in;margin-bottom:.0001pt;background:white;vertical-align:
baseline'><span style='font-family:"Arial","sans-serif";color:#333333'>Researchers
aboard a 2011 cruise found severe damage to shells of</span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#333333'> </span></span><em><span style='font-family:"Arial","sans-serif";
color:#333333;border:none windowtext 1.0pt;padding:0in'>Limacina helicina</span></em><span
style='font-family:"Arial","sans-serif";color:#333333'>, a sea snail that plays
an important role in the ecosystem of the California Current off the Pacific
coast. Scientists estimate that one-fifth of the pteropods had damaged shells
in preindustrial times, owing to the natural acidity of the water, and anthropogenic
emissions of CO<sub><span style='border:none windowtext 1.0pt;padding:0in'>2</span></sub></span><span
class=apple-converted-space><span style='font-family:"Arial","sans-serif";
color:#333333'> </span></span><span style='font-family:"Arial","sans-serif";
color:#333333'>made the water more acidic, more than doubling the number of
individuals with damaged shells.<o:p></o:p></span></p>
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