Remora or diskfish species can be found on a wide variety of hosts including teleost fishes, marine mammals, turtles, sharks, and even conspecifics. This relationship is widely known, but the costs and benefits of this interaction for the remoras and their hosts remain poorly understood. The unique suction disk of the remoras and its performance would largely define the interactions with their hosts. However, the relation between a remora and its host seems to differ for each echeneid species.