Octonauts· Season 3 · Episode 17The Immortal JellyfishS03E17·March 20, 2014·11m·CBeebiesShellington and the Octonauts try to track an unusual creature: a jellyfish that can transform from old to young repeatedly - and live forever!Streaming on (US) See allSharePreviousThe Sea SpongeS03E16NextThe Urchin InvasionS03E18Keep goingSeasonSeason 3 ranked & reviewedEvery episode in airing order with ratings and dates.StreamWhere to watch OctonautsEvery streaming service and region, checked around the clock.MatchupShows like OctonautsThe closest matches, ranked by overlap and rating.
