Given the genetic evidence that anatomically modern humans interbred with at least H. neanderthalensis and the Denisova hominins, it seems increasingly likely that there was a continuum of interbreeding between specially and temporally adjacent hominin species.
Given the genetic evidence that anatomically modern humans interbred with at least H. neanderthalensis Green RE, Krause J, et al. PMID 20448178 and the Denisova hominins, it seems increasingly likely that there was a continuum of interbreeding between specially and temporally adjacent hominin species.