Filter feeders are organisms that obtain their food by filtering small particles from water. They typically have specialized structures, such as gills or nets, that help them capture plankton, algae, and other tiny organisms. Common examples of filter feeders include clams, oysters, and whales. These creatures play a crucial role in aquatic ecosystems by helping to maintain water quality. As they filter out particles, they can reduce excess nutrients and improve clarity in the water. This process supports the health of other marine life and contributes to the overall balance of the ecosystem.