When plankton concentrations become patchy, manta rays feed alone and they somersault themselves backwards again and again, very much like a puppy chasing its own tail.
Planktonu koncentrācijām kļūstot skrajākām, mantas barojas vienatnē un tās atkal un atkal atmuguriski kūleņo, gluži kā kucēns ķerdams savu asti.