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