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1、JourneyintoAmazonia:TheBigTopNGC全民英檢:探索亞馬遜－雨林頂端播出時間:11月5日星期六@11:00-12:00TherainforestofAmazonia-wherelifeinallitsbeautyandmyriadformsreignssupreme.LessknownthenthesurfaceofMars,itsinhabitantsstrangerthansciencefiction...thisisEarth'sfinal,unexploredfronti
2、er.ThisisAmazonia's"BigTop"!Theworld'smightiestriverbreaksthroughthecanopyofthelargesttropicalrainforestontheplanet.Combinedwithitstributaries,theAmazondrainsintoanareaofalmostsevenmillionsquarekilometres-morethanhalfofSouthAmerica.Likeagiantcircustentnin
3、etimesthesizeofTexas,Amazonia'streecoveredworldhoststhegreatestvarietyofplantsandanimalsontheplanet.Sixtymetersabovetheground,lessstudiedthantheseafloor...Untilrecently,thisincrediblespectacledefiedeventhemostintrepidscientistsandexplorers.Somanyofitsrich
4、eshaveyettoberecordedthatitisbelievedthatthisbizarreandbeautifulcanopycouldhousehalfofalltheworld'sspecies.Inadditiontomillionsofinsects,Amazonia'simpressivecastofcharactersincludesatleast300differentmammals.Atleastonehundredseventy-fivedifferentlizards..
5、.Overfourhundredreptilesandamphibians...Treeclimbersofeveryshapeandsize,Andathirdoftheworld'sbirds.Thesemagnificentcreaturesallhavetheirownuniquetricksandtalents,costumesandcamouflage,andcommandperformances.A100yearsagotheAmericanexplorer,WilliamBeebe,wro
6、teoftheAmazon:"Yetanothercontinentofliferemainstobediscovered,notupontheearth,butoneortwohundredfeetaboveit,extendingoverthousandsofsquaremiles...Thereawaitsarichharvestforthenaturalistwhoovercomestheobstacles-gravitation,ants,rottentrunks-andmountstothes
7、ummitofthejungletrees."SinceBeebemarvelledatthisincrediblespectacle,scientistshavehadtomultiply-manytimesover-allpreviousestimatesoftheextentoflifeinthesetreetops.Onlyrecently,thesheernumberoftermiteshascometolight-Morethan200speciescalltheAmazonriverbasi
8、ntheirhome-acumulativemassthreetimesthatofallthebirdsandmammalsintherainforest.YetalmostahundredyearslaterAmazoniaisrevealinghersecretsslowlylikecrumbsfromagiant'sbanquettable.Foravastnumberofspecies,thecanopyofthis
