Rare bioluminescent bay's monthslong blackout has researchers worried

摘要

One of the world's most famous bioluminescent bays has gone dark, and the outage hasrnscientists concerned.rnField researcher Mark Martin has been collecting water samples in Puerto Rico's Mosquito Bayrnto try to figure out why the bay's shimmering microscopic plankton -- known as dinoflagellates --rnhave stopped lighting up since January.