Swan mussel

The swan mussel is a sizable freshwater mollusk that lives in rivers and lakes. It belongs to the Unionidae family, known for their two-part hinged shells. These mussels quietly filter water as they feed, helping keep their habitats clean.

• Its shell can grow large enough to fit in an adult's hand.
• It spends its life partly buried in sandy or muddy riverbeds.
• Like other river mussels, it filters tiny food particles from the water.