Denisovans are known from bones found in Denisova Cave in the Alt...

Question

Denisovans are known from bones found in Denisova Cave in the Altai Mountains in Siberia, but traces of their DNA are found in Australians and Melanesians, whose ancestors likely migrated across Asia much farther to the south. How can these geographic differences be reconciled?

Accepted Answer

Hey, everyone. Let's take a look at this question together. In addition to the Deans, what other ancient human group has been found to have interbred with modern humans? Is it answer choice? A neanderthals answer choice. B homo erectus, answer choice, C cro magnons or answer choice D australopithecines. Let's work this problem out together to try to figure out which of the following groups have been found to interbreed with modern humans. So when talking about modern humans, we know that modern humans migrated out of Africa approximately 60,000 years a go and once they migrated out of Africa, they next encountered neanderthals in Eurasia, which means that the next species that those modern humans interacted with after migrating out of Africa were the neanderthals, which means that the ancient human group that has been found to have interbred with the modern humans are the neanderthals. So answer choice A is the correct answer. And we also know that it was the neanderthals because it is further supported by genetic studies. And there is no evidence to support that modern humans interbred with any of the other groups. I hope you found this video to be helpful Thank you and goodbye.

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Denisovans are known from bones found in Denisova Cave in the Altai Mountains in Siberia, but traces of their DNA are found in Australians and Melanesians, whose ancestors likely migrated across Asia much farther to the south. How can these geographic differences be reconciled?