The term "Suckerfish" refers to a group of fish known for their unique ability to attach themselves to larger marine animals, such as whales and sharks. They belong to the family Echeneidae and are often found in warm ocean waters. Suckerfish have a specialized disc on their heads that allows them to cling to their hosts, benefiting from the protection and food scraps provided by these larger creatures. Suckerfish play a role in marine ecosystems by helping to clean their hosts of parasites and dead skin. This symbiotic relationship is beneficial for both the suckerfish and the larger animals they attach to, as it promotes health and hygiene in the ocean environment.