Five new mussel species discovered in North America

Mussels, oysters, cockles and scallops filter water and improve water quality, while mussel farms increase biodiversity in surrounding areas. Yet 70% of native North American mussel species are threatened, particularly by invasive species such as zebra mussels and by habitat loss. Researchers from Shedd Aquarium, Arkansas State University and the U.S. Geological Survey snorkeled in rivers and streams of the...