Scientists just discovered two previously unknown human species on this island. Denisovan humans are a previously unknown species that lived on the island of Papua New Guinea up until about 15,000 years ago. These discoveries were made by a team of researchers who used DNA sequencing to study the genomes of a group of humans who live on the island today. The findings of this study will help us to better understand the evolutionary history of humans, and give us a better understanding of the Denisovans. So if you're curious about the evolutionary history of humans, make sure to check out this story! It's going to be fascinating.