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人类进化1:混沌初开

类型:纪录片美国2009详情

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Wheredidwecomefroccc?Whatmakesushuman?Anexplosionofrecentdiscoveriesshedslightonthesequestions,andNOVA\'scomprehensive,three-partspecial,\"BecomingHuman,\"examineswhatthelatestscientificresearchrevealsaboutourhominidrelatives.Part1,\"FirstSteps,\"examinesthefactorsthatcausedustosplitfromtheothergreatapes.Theprogramexploresthefossilof\"Selam,\"alsoknownas\"Lucy\'sChild.\"PaleoanthropologistZerayAlemsegedspentfiveyearscarefullyexcavatingthesandstone-embeddedfossil.NOVA\'scamerasaretheretocapturetheunveilingoftheface,spine,andshoulderbladesofthis3.3million-year-oldfossilchild.AndNOVAtakesviewers\"insidetheskull\"toshowhowourancestors\'brainshadbeguntochangefromthoseoftheapes.Whydidleapsinhumanevolutiontakeplace?\"FirstSteps\"exploresaprovocative\"bigidea\"thatsharpswingsofclimatewereakeyfactor.