Brine shrimp (artemia salina).
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<a rel="nofollow" class="external free" href="http://www.afsc.noaa.gov/kodiak/shellfish/cultivation/artemia.htm">http://www.afsc.noaa.gov/kodiak/shellfish/cultivation/artemia.htm</a><br>First uploaded to en-Wikipedia as <a href="https://en.wikipedia.org/wiki/Image:Artemia_salina.jpg" class="extiw" title="en:Image:Artemia salina.jpg">en:Image:Artemia_salina.jpg</a>