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..这(zhè )么想(🕜)着张秀娥就用(yòng )最快的速度往鬼宅的(🕶)方(fāng )向跑去。他是不是凶手，不是你说了算，是证据(🍼)说(🤒)了算，你身(🤦)为一(yī )名军人(rén )，上面把任务交给你，你做(zuò(🥑) )了什(💥)么(🎵)？隐瞒(🔶)不报(🐉)？如(👃)果(guǒ )他不是凶手，你大可(kě )以把你(nǐ )发(🖋)(fā )现的疑点告诉我，再由(yóu )团队(📘)一(yī )起分析(💑)判断，找(zhǎo )出(🏀)真正的凶(🍄)手。不行(háng )，这样下去，我(wǒ )就(🎟)输(shū )定了，恐(kǒng )怕等到弓箭兵和(🐯)弩兵(bīng )分出(🛍)胜负(fù )的(🅿)时(shí )候，便是我败亡的(de )时候，不(bú )能够(🏘)这样下去了。在蒋介石反攻(🦕)大陆的(🛏)叫嚣(xiāo )下，加上先进(jìn )美(🚣)式装备做后盾，蒋匪海军(jun1 )不断袭忧我东南沿海(🦃)。当然，高看归高(🐦)看，不喜欢(🈲🈲)还是不(🚀)喜欢。韩雪接过小丧尸(👬)递过来的两颗晶核，摸了摸它(➗)的脑袋表扬(📤)了一(❄)下。后春(🥍)丽被(bèi )他骗去禁闭(bì(🎓) )于(🥡)僻远的(🍭)别庄。陈美(⏹)瞥了一眼他(🤢)勉强(🥔)的表情，眼(🍩)里(🔧)闪过失落。