1. Clams: Clams are bivalve mollusks that live in both marine and freshwater environments. They use their gills as filters to trap food particles from the water. Water is drawn into the clam's body through the incurrent siphon, and the gills filter out organic particles, such as phytoplankton, algae, and other microscopic organisms. The filtered particles are then transported to the clam's mouth for consumption.
2. Barnacles: Barnacles are small crustaceans that attach themselves to hard surfaces, such as rocks, piers, and ship hulls. They have a hard outer shell and a feeding apparatus consisting of specialized appendages called cirri. When the barnacle senses the presence of food particles in the water, it extends its cirri and sweeps them through the water, capturing phytoplankton, zooplankton, and other small organisms. The filtered particles are then transported to the barnacle's mouth.
3. Whale Sharks: Despite being the largest fish species in the world, whale sharks are filter feeders. They have a massive, wide-open mouth and specialized gill rakers that serve as filters. Whale sharks swim with their mouths open, straining large volumes of water through their gills. The gill rakers trap planktonic organisms, small fish, and other food particles, which are then swallowed.
