<p>Striped dolphins (Stenella coeruleoalba) observed in emulsified oil on April 29. Credit: NOAA.
</p><p>during the Deepwater Horizon oil spill
</p>
(Original source: &lt;a href="<a rel="nofollow" class="external free" href="http://oceanservice.noaa.gov/deepwaterhorizon/images.html">http://oceanservice.noaa.gov/deepwaterhorizon/images.html</a>" rel="nofollow"&gt;Deepwater Horizon Incident Image Gallery&lt;/a&gt;)
<a href="//www.flickr.com/people/40322276@N04" class="extiw" title="flickruser:40322276@N04">NOAA's National Ocean Service</a>
CC BY 2.0
<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/40322276@N04/4690910170">Striped Dolphins</a>