Homo sapiens, the species that all human beings are believed to belong to, might have crossbred with others, says a study. Homo sapiens, believed to have originated in Africa, possibly interbred with ancient forms of the genus Homo, that includes the present day and other closely related species of humans.
http://ummid.com/news/2011/September/06.09.2011/modern_humans.htm
http://ummid.com/news/2011/September/06.09.2011/modern_humans.htm
