Thedocumentarydepictsmonarchbutterfliesgreatandmysteriousmigration.Eachyearsautumn,millionsofmonarchbutterfliesstarttheirincrediblesouthwardmigrationfromCanada,crossAmerica,toMexico.Theyflyabove2,000milestoarrivethemountainofMexico.....ThefilmopenswithcaterpillarsmunchingmilkweedinsouthernCanadainlatesummer.Sooneachcaterpillartransformsitselfintoasilkychrysalis.Roughly10dayslater,adelicatefour-wingedmonarchemerges.Then,atsomeunknownsignal,themonarchstaketotheaironatwo-month,2,000-mileflightoverfields,forests,cities,plains,openwater,deserts,andfinallymountainstocongregateinatiny,high-altituderegionofcentralMexicowheretheyveneverbeenbefore.Incredibly,theyarrivebythemillionsatthesametimeeachyear.Sheddinglightonthisnaturalwonderaresomeoftheworldsleadingmonarchresearchers,includingLincolnBrowerofSweetBriarCollege,independentbiologistBillCalvert,andOrleyChipTayloroftheUniversityofKansas.Puttingthemonarchphenomenonintoperspective,Taylorsays,YouvegotabutterflythatsoriginatinginToronto,oritsoriginatinginDetroit,Michigan,oritscomingdownfromSt.PaulormaybeevenWinnipeg,anditsmovingsouth.SomehowitfindsitswaytoMexico.Couldyoudothat?Nooneyetknowshowthebutterfliesdoit,butTaylorsresearchrevealsthattheyareexpertnavigators.Inoneexperiment,hetransportedMexico-boundmonarchsfromKansastoWashington,DC,andthensetthemloose.Atfirst,theyflewsouthasiftheywerestillinKansas—acoursethatfromWashingtonwouldmissMexicoentirely.Butafterafewdays,theycorrectedtheirflightpath,asifsomeinbornGPSunithadalertedthemtothetruedirectionoftheirdestination.Inanothersequence,NOVAaccompaniescelebratedmonarchwatcherBillCalvertaroundbackcountryTexasashelooksforsignsofthemonarchmigration.Sureenough,theyshowupenmasseandontime,headingtowardtheSierraMadremountainsacrosstheborder—thelastlegoftheirflight.AndintheMexicanstateofMichoacán,NOVAjoinsmountainvillagersastheycelebratethearrivalofthemonarchsinthefirstweekofNovember.ThebutterfliesarrivalmarksthestartofacelebrationcalledtheDayoftheDead,sincethelocalpeoplehavetraditionallyassociatedthemonarchswiththereturningsoulsoftheirdepartedancestors.Unfortunately,illegalloggingintheMexicanbutterflysanctuariesthreatenstheuniquehabitatthatmonarchsdependonfortheirsurvival.Monarchsmaynotyetbeanendangeredspecies,buttheirannualmigrationisanendangeredphenomenonthatcoulddwindletoinsignificanceifthegiantfirsthattheyclingtoduringthewinterdisappear.Gonealsowouldbethecolorfulfestivalthatclosestheprogram—afireworksdisplaywelcomingthehardyflierstoMexico,withorangeburstsagainsttheblacksky,lookingalmostlikethebeautifulcloaksofthemonarchs..马修否认残杀年(💀)轻(qī(🏰)ng )情(😢)侣被判死刑，提(🉑)(tí )出(🥣)上诉。如果可以，他最好给根据地的战士(🖇)们(🌬)讲讲课，给(🦒)他们(men )谈谈(😽)(tán )未来。素珠(zhū )链是撒里畏兀儿人(🏐)(rén )，生(🌳)(shē(🌸)ng )长在天境草原八字墎。首先，艾斯(sī )将怀疑对象锁定在了野(🏃)生动物园园长身上，可是(🚪)却苦苦无法找到证据，只好作(🚜)罢。今晚别走(🧀)，我一定(dìng )摆上一桌(🚴)好(🎫)酒(jiǔ )好菜，向(🍤)大家赔(péi )罪(zuì )。傅城(chéng )予却(🥨)(què )只是握(🦓)着她的手臂，感受了一(📓)下她肌肤的(de )温(📗)度，下一刻转身就又回到了病(🥓)房，径直(🤴)从慕浅和霍靳西面前穿过，在储物柜(❤)中给她取(qǔ )出一套(🛤)衣服，又快速掠过慕浅(qiǎn )和霍(🕑)靳西(xī )，直接(🏚)推门走进了卫生间。直到(😳)看见(💄)服(👹)务生接(jiē )连撤下几个(🎻)空盘，她似(🎐)乎才放下心来，这才让(🔮)上了申望(wàng )津想要(👺)的黑(🔦)咖啡。帝(dì(🐓) )都(dō(🍑)u )，一高级休闲(xián )会(📒)(huì )所内。