Girl Planting seeds

'The smell will knock you off your feet': mass mussel die-offs baffle scientists

Mussels are the backbone of the river ecosystem because they control silt levels and filter water. And they are facing a mysterious affliction in hotspots in the US and abroad.  Richard, who works for the US Fish and Wildlife Service, is part of a team investigating the bizarre declines in Tennessee and Virginia, as well as Oregon and Washington.  Read more....



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