Denisovans are an early hominin species that was first identified in 2010. They were named after the Denisova cave in Siberia where the first evidence of their existence (a tooth and a bone) were discovered in 2008. There is disagreement whether they constitute a species or subspecies, so they are respectively referred to as either Homo denisova or Homo sapiens denisova. Current research suggests that H. sapiens and Denisovans may have overlapped in different geographical regions, and more importantly, interbred. Provide TWO pieces of evidence, with explanation, that support the hypothesis that H. sapiens and Denisovanindividuals interbred.

According to the research done on the denisovan bones found in the siberia cave, the interbreeding between denisovans and homo sapiens might have took place around 44,000 years ago. The research shows what percentage of the genome of the people are similar to the denisovans and where these percentages change.

Melanesians share around 4 to 6 percent of Denisovan genome and this number goes down to around 0.2 percent among Asians and Native Americans.

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