What does MPI stand for? MPI stands for Major Periodic Inspection (aviation industry) Suggest new definition This definition appears somewhat frequently and is found in the following Acronym Finder categories:
Scientists agree that our early ancestors, Homo erectus, first appeared in Africa 1â2 million years ago. They spread throughout the world and evolved into ancient humans. Most believe that modern humans evolved in Africa, and gradually replaced all the other ancient humans (the 'Out-of-Africa' theory). Some scientists believe that ancient humans may have evolved into modern humans all over the world at around the same time (the 'multiregional' theory). Either way, by about 30,000 years ago, we â Homo sapiens â were the only humans left on the planet. The 'multiregional' and 'Out-of-Africa' theories.
Individual members of this species and other later homo did not all come from Africa. Recent studies on ribosomal DNA indicates that all modern humans had a common ancestor in northern Africa. ANS:Yes, all humans originated in Africa. Scientists have determined that the region that is now Ethiopia was a likely place for the first humans to have evolved. From there they slowly spread out.