The type of relationship that exists between sharks and suckerfish is

A relationship in which one creature benefits while the other is unharmed is known as commensalism. By affixing itself to a leopard shark, Remora is propelled forward by the shark's strength. Remora can now go to new regions without needing to use its own vitality to swim. The presence of the Remora has no effect on the shark. Suckerfish is also called the Remora.