【內容簡介】東非大裂谷自紅海至贊比西河口，連綿三千里，從太空都能看到。這裏是多姿多彩的地方，有噴發的火山、覆蓋着森林的高山、美麗的峽谷、廣袤的草原、巨大的平湖和河流，是鱷魚、河馬、獅子、大象、火烈鳥和非洲人的家園。BBC採用最新的高清攝影技術，探討了形式東非大裂谷的地質力量，展現世界上野生動物品種最多的地貌。Visiblefromspace,Africa’sGreatRiftValleyrunsthreethousandmilesfromtheRedSeatothemouthoftheZambezi.It’sadiverseterrainoferuptingvolcanoes,forest-cladmountains,spectacularvalleys,rollinggrasslands,hugelakesandmightyrivers,andishometocrocodiles,hippos,lions,elephants,flocksofflamingosandadiversityofindigenouspeoples.Usingstate-of-the-arthighdefinitionfilmingtechniques,thisseriesinvestigatesthegeologicalforceswhichshapedEastAfrica’sGreatRift,andwhichmakeitoneoftheworld’smostwildlife-richlandscapes.Part1:FireThevalleyistheproductofdeep-seatedgeologicalforceswhichhavespewedoutalineofcloud-wreathedvolcanoesstretchingfromEthiopiatoTanzania.TheirpeaksprovidearefugeforEastAfrica’smostextraordinarywildlife,includingnewlydiscoveredandpreviouslyunfilmedspecieswhichhaveevolvedsurprisingsurvivalstrategiestocopewiththeirchallengingmountainenvironment.Part2:WaterTheGreatRiftValleychannelsahugediversityofwaterways-rivers,lakes,waterfalls,causticspringsandcoralseas-spanningfromEgypttoMozambique.Somelakeandoceandeepsharbourpreviouslyunseenlife-forms,whilecausticwaterschallengelifetotheextreme.ButwherevolcanicmineralsenrichtheGreatRift’swaterways,theyprovidethemostspectacularconcentrationsofbirds,mammalsandfishinallAfrica.Part3:GrassTheGreatRiftValleyprovidesthestageforanepicbattlebetweentreesandgrass-itscourseinfluencedbyvolcaniceruptions,landscapeandrainfall.OnitsoutcomereststhefateofAfrica’sgreatgameherds.IntheRift’ssavannas,grazersandtheirpredatorsstruggletooutwiteachother,forcingonegroupofprimatestodevelopasocialsystemthatpavedthewayfortheevolutionofmankind.