简介：Luminousbeings,creatureswiththeirowninternallight,enchantandastonishus.Anyonewhohasseenafireflyoraglow-wormcannothelpbutfallundertheirspell.Theseaatnightsparklesasmillionsofluminousplanktonrevealtheshapesofdolphinsinatrulymagicallightshow.　　Butwhydoanimalsproducelivinglight?Forcenturieswecouldonlymarvelatthebeautyandthemystery,butnowforthefirsttimewecanbegintorevealtheamazingtruthaboutlivinglights.Ithastakenthreecrucialtechnologicalbreakthroughs.Firstly,colourcamerashaveimproveddramatically;theyarenowover4,000timesmoresensitivethanadecadeago.Thecamerasaresosensitivetheyarerevealingstartlingdiscoveriesthatuntilnowwecouldnotsee.Secondly,scientistshaveenteredtheunknownworldoftheboundlessdeepopenoceanwiththehelpofanewgenerationofsubmersiblesandrobots.Thirdly,AmmoniteFilmshaveinventedandbuiltaseriesofuniquecamerasthatcancapturethefaintestephemeralglowofluminouslife.　　Bycombiningthesethreeinnovations,thisfilmshowscreaturesandbehavioursneverseenbefore.SirDavidAttenboroughisourguideasweventureintoanewhithertounseenworld.Bioluminescenceiseverywhere:inthesoil,onthelandandthroughouttheoceans.　　JoinSirDavidAttenboroughandateamoftheworld'sleadingscientistsanddeepseaexplorersonaquesttorevealthesecretsoflivinglights.…