剧情：
AliceRobertsexploresthelatestdiscoveriesinthestudyofhumanorigins,revealingthetransformationthathasbeenbroughtaboutinthisfieldbygenetics.Traditionalpaleo-anthropology,basedonfossils,isbeingtransformedbyadvancedgenomesequencingtechniques.Wenowknowthattherewereatleastfourotherdistinctspeciesofhumanontheplanetatthesametimea...收起
