#Kallie Moore #Michelle Barboza-Ramirez #Blake de Pastino #eons #Hank Green #John Green #DFTBA #PBS #PBSDS #dinosaur #earth #natural history #paleontology #fossils #archaeology #geology #humans #human evolution #cradle of humankind #humanity #homo sapiens #out of africa #Multiregional Hypothesis #africa #asia #Lemuria #human ancestors #darwin #Homo erectus #australopithecine #anthropology #evolution #genomics #science