Examples of animal hybrids and interbreeding between species show the complexity of evolution and genetic diversity. From Africa came out hominids that evolved separately in different corners of the earth - without interbreeding genes for hundreds of thousands of years. At the same time, their ancestors remained comfortably in Africa. The author doesn't mention it, but the skull from Iwu Eleru proves that just 12,000 B.C. archaic forms of hominids continued to exist in West Africa. Humans evolved separately from them for hundreds of thousands of years.