April 22, 2010
This undated handout image provided by the Census of Marine Life shows, the acantharians are one of the four types of large amoebae that occur in marine open waters. Their fragile skeletons are made of a single crystal of strontium sulfate that quickly dissolves in the ocean water after the cell dies. If the Census Bureau thinks it has it's hands full counting Americans, imagine the problems of scientists trying to tally everything living in the oceans, including microbes so small they seem invisible.
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