走进奥卡万戈

Africa'sOkavangoRiverBasin,whichcovers125,000squaremilesacrossAngola,BotswanaandNamibia,ishometothelargestremainingpopulationofAfricanelephantsaswellassignificantpopulationsoflions,cheetahs,wilddogsandhundredsofspeciesofbirds.It'salsoavitalsourceofwaterformorethan1millionpeopleandfeedsBotswana'smajesticOkavangoDelta,aWorldHeritageSitethatisnowthreatenedbyhumanactivityalongtheriversthatfeedit.In2015NationalGeographicFellowDr.SteveBoyesassembledaremarkableteamtoembarkonafour-yearprojecttostudythisvastanddiverseecosystemtodeterminehowbesttoprotectthedeltaanditsheadwatersforgenerationstocome.Thefirst1,500-mileriverexpeditionoftheprojectbroughttogetherlocalguidesandinternationalexplorers,storytellersandscientists.Theteamincluded27-year-oldmarinebiologistAdjanyCosta,whogrewupinthesprawlingAngolancapitalofLuandaduringthecountry'sbrutalcivilwar,aswellasanOkavangonative,TumeletsoSetlabosha,nicknamed&quot;Water,&quot;anexpertboatsmanwhospenthisentirelifeonthedelta.StartinginAngolaatthesourceoftheCuitoRiver,oneofthethreearteriesfeedingthebasin,theexplorerstraveledbytraditionalcanoe(mokoro),buttheysoonranagroundwhenthestreamnarrowedtoatrickle,forcingthemtodragtheirboatsacrossmarshlandforeightgruelingdays.Astheriveragainbecamenavigable,theteam'shopesofdocumentingathrivingecosystemwerefurtherdeterredwhentheyencounteredvasttractsofwoodlandburnedbylocalhunters.Despitetheseinitialdisappointmentsandsetbacks,BoyesandhisteamcontinuedtheirjourneythroughthehighlandsofAngolaandsoonencounteredadizzyingarrayofwildlife.Byjourney'send,thescientistscollecteddatafrom50,000locationsalongtheway,chroniclingdozensofnewscientificdiscoveriesandsheddingfreshlightonthedelicateinterconnectionsthatbindhumankindwithnature.<br/>　　DirectedbyNationalGeographicSocietyfilmmakerNeilGelinasandfeaturingstunningwildlifephotographyandaerialviewsofrarelyseenvistas,NationalGeographic<br/>　　DocumentaryFilms'IntotheOkavangoisadeeplymovingchronicleofmodern-dayexplorersforevertransformedbytheadventureofalifetime.Itisalsoanattempttodrawtheworld'sattentionnotonlytotheOkavangoRiverBasin,oneofthemostimportantareasforbiodiversityconservation,buttothelittle-knownandvulnerablewildernessareaintheAngolanhighlandsonwhichitdepends.