What is the habitat of bivalves?

Bivalves are primarily found in aquatic environments, including both marine and freshwater habitats. They inhabit diverse ecosystems, such as oceans, rivers, lakes, and estuaries, often residing in sandy or muddy substrates where they can burrow. Some species are adapted to live attached to surfaces like rocks or coral, while others are free-living. Their habitats provide essential functions, such as filtering water and serving as food sources for various predators.