Human DNA is 8 percent ancient virus remnants

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Is it the same for other species, particularly mammals? What about other races? Since Asians and Europeans descend from Neanderthal, Asians also from Denisovan, and Africans from a missing link/homoerectus type of early human would it be the same ratios for all of the above?

https://medicineatmichigan.org/web-exclusives/2016/april/ancient-viruses-lurk-our-dna