By Susan Milius
The first description of clashing armies of sea anemones has revealed unsuspected military tactics.
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“Sea anemone fights are amazing,” says David Ayre of the University of Wollongong in Australia. Although anemones move in slow motion, a group-living species from the shores of California, Anthopleura elegantissima, fields a sophisticated army, report Ayre and Richard Grosberg of the University of California, Davis.