interbred造句
(31) A study in Nature journal shows that Denisovans co-existed with Neanderthals and interbred with our species - perhaps around 50, 000 years ago.
(32) Polar bears and brown bears became distinct species around 150, 000 years ago, but have occasionally interbred ever since.
(33) Scientists say an entirely separate type of human identified from bones in Siberia co-existed and interbred with our own species.
(34) DNA studies, for example, suggest that our ancient human ancestors interbred, with Neanderthals possibly being absorbed into our gene pool and disappearing as their own distinct hominid species.
(35) In May a landmark genome analysis determined that humans most likely interbred with Neanderthals, and that as much as 4% of the modern human genome seems to be from Neanderthals.
(36) Neanderthals are our closest known extinct relatives, and many of us "modern humans" possess Neanderthal genes, revealing that our ancestors once interbred with them.
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