english: 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.
non_english: Keď sa koncentrácie planktónu stenčia, manta sa kŕmi samostatne a dokola sa krúti vzad v rade otočiek, celkom ako keď psík naháňa vlastný chvost.