地平线系列：失落的部族

AliceRobertsexploresthelatestdiscoveriesinthestudyofhumanorigins,revealingthetransformationthathasbeenbroughtaboutinthisfieldbygenetics. Traditionalpaleo-anthropology,basedonfossils,isbeingtransformedbyadvancedgenomesequencingtechniques.Wenowknowthattherewereatleastfourotherdistinctspeciesofhumanontheplanetatthesametimeasus-someofthemidentifiedfromastonishinglywell-preservedDNAextractedfrom50,000-year-oldbones,othershintedatbyarchaicsectionsofDNAhiddeninourmoderngenome.What’smore,wenowknowthatourancestorsmetandinteractedwiththeseotherhumans,inwaysthatstillhaveramificationstoday.Aliceusestheserevelationstoupdateourpictureofthehumanfamilytree.

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