The first documentation of the existence of Denisova hominins has been revealed in a Tibetan cave. The evidence is a mandible aging 160 decades ago.
Discovery of the Fossil
The existence of the species was in great debate due to lack of proof. A monk found the first lower jaw bone in a cave in Gansu Province and gave the piece to a researcher. They began studying the structure but could not determine the exact human subspecies resembling it.
After three decades, Tibet and Chinese researchers started working together to uncover the Denisovans. Surprisingly, another group in Russia conducted DNA analysis in a finger bone they dug. They reported that the sequence was not from the previously known human species.
All three teams worked together to study each other’s sample. They were able to date the bone as far as the Middle Pleistocene era from the chemical crust of the jaw. With limited protein samples present in the molar of the fossil, they were able to predict the DNA sequence of the hominins. The best match they’ve concluded is the Denisovans. Sadly, they cannot extract the DNA structure from the mandible, but this is the best they can show.
Other Information Known About Hominins
Other scientists working on the subspecies felt excited about this discovery. They seemed surprised that one was found more than 3,000 meters above the sea level. Though considering climate changes for the past 160,000 years, the plateau would be a tough place to live in, and it would be notably cold there.
Most of the studies are from Western countries, but recent studies from Asian researchers are gaining more attention. It is evident that there are at least three different historic group of people known in East Asia.
People have been trying to understand the missing link that makes up of the Pacific Islander’s trait of tolerating high altitudes. They were trying to find proof in the Denisova cave with no luck. It seems like a surprise that the fossils will show up in different areas of the world.