Along the U.S. Pacific coast, droves of alien creatures about the size of a doughnut are washing up on beaches and leaving a mat of briefly blue debris that soon fades to a crackly white-hiding just how bizarre these animals are."Most people experience them as some kind of weird, off-white, old-toenail-color crunchiness that you walk on on the beach," says Julia Parrish, a marine ecologist at the University of Washington.
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