Today, all humans are classified as belonging to the species Homo sapiens and sub-species Homo sapiens sapiens. However, this is not the first species of homininae: the first species of genus Homo, Homo habilis, are theorized to have evolved in East Africa at least 2 million years ago, and members of this species populated different parts of Africa in a relatively short time. Homo erectus is theorized to have evolved more than 1.8 million years ago, and by 1.5 million years ago had spread throughout Europe and Asia. Virtually all physical anthropologists agree that Archaic Homo sapiens (A group including the possible species H. heidelbergensis, H. rhodesiensis and H. neanderthalensis) evolved out of African Homo erectus ((sensu lato) or Homo ergaster). COUNT 5
QSN1 What species do all living humans today belong to? ANS1 Homo sapiens QSN2 When is it theorized that Homo habilis evolved in East Africa? ANS2 2 million years ago QSN3 How many millions of years ago had Homo erectus spread throughout Europa and Asia? ANS3 1.5 QSN4 Members of what species populated parts of Africa in a relatively short time? ANS4 Homo habilis QSN5 What group might have Archaic Homo sapiens evolve out of? ANS5 African Homo erectus