According to this

DNA of extinct human species

Aboriginal Australians, Pacific Islanders carry DNA of unknown human species, research analysis suggests

and according to this

Neanderthal genetics

The proportion of Neanderthal-inherited genetic material is about 1 to 4 percent [later refined to 1.5 to 2.1 percent] and is found in all non-African populations

Are these the only known 2 species whose DNA is present in modern humans, or are there more cases like these ones?

  • $\begingroup$ Please read the first article you cite, and then withdraw your question. $\endgroup$ – David Jan 31 at 17:25

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