Freshwater mussels are bivalve mollusks that live in rivers, lakes, and ponds. They have two hinged shells that protect their soft bodies and can vary in size and color. These organisms play a crucial role in their ecosystems by filtering water, which helps maintain water quality and clarity. These mussels are also important for biodiversity, as they provide habitat and food for various species, including fish and birds. Unfortunately, many freshwater mussel species are threatened or endangered due to habitat loss, pollution, and invasive species, making conservation efforts essential for their survival.