NBC NEWS - Scientists say an African-American male's odd genetic signature suggests that the human Y chromosome's lineage goes back further in time than they thought — perhaps due to interbreeding with other populations such as Neanderthals...
theGRIO's 100: Rick Kittles, PhD, 47, has traced the ancestry of over 100,000 African-Americans, including Oprah Winfrey, Isaiah Washington, Spike Lee and India Arie in his role as co-founder and scientific director of African Ancestry, Inc...