Once found throughout the Columbia River basin, the ashy pebblesnail and the shortface lanx have disappeared from much of Washington. The Center for Biological Diversity hopes to change that. The nonprofit group has petitioned the U.S. Fish and Wildlife Service to add both species to the federal endangered species list.
Center for Biological Diversity hopes to protect Washington’s Ashy pebblesnail and shortface lanx
Group: They play key roles in food chain, health of waterways
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