BEIJING, May 7 (Xinhua) — Human evolution is one of the most active areas of scientific research, according tomedia reports. To mark the 10th anniversary of the Smithsonian Institution’s “David Hoberg Hall of Human Origins,” the researchers listed some of the most important discoveries in the history of human evolution over the past 10 years:
1. Ancient DNA of mankind
DNA can tell us a lot about kinship, and scientists who study early human DNA will help solve the mystery of human origin.
Ten years ago, scientists discovered a fossil of a finger bone in the Dansova cave in Siberia and recovered the genetic material in it, and tests showed that the finger bone’s DNA did not match the DNA of modern humans or Neanderthals, but belonged to an early human species that had never been found before, known as the Denisovans. This is the first new species to be discovered using ancient human DNA identification.
What does this discovery tell us? Perhaps the human genome is a wonderful archive of our subtle connections with extinct ancient human species.
2. Discover new species of human ancestors
Over the past 10 years, we have discovered four new species of early humans, including the mysterious Homo naledi. Five years after scientists claimed to have found at least 15 fragments of Naredi bones deep in South Africa’s “Rising Star” cave, scientists still don’t know why they were stored there. So far there is no evidence that any of the remains were dragged into the cave by ancient beasts, nor that the ancient floods washed the bones into the cave, which found no other animal bones except for the bones of an owl. If so, who put it? All this is an urgent mystery.
Scientists now know that these Naredi skeleton fossils date back 335,000 to 236,000 years ago, and that the Naredi synods have a mixture of ancient and modern humans, a species that overlapped with several other species in the history of human evolution.
3, fossil discovery reveals more human secrets
Not all fossil discoveries point to a new species, but the newly discovered fossils of early human skeletal skeletons will tell us more about our ancestors…
Early human fossils found over the past 10 years have further broadened our understanding of the geographic scope and time span of several early human species, but the most exciting discovery is the southern ape skull from the Volonso Miller region of Ethiopia, which dates back 3.8 million years. Prior to the discovery, which was announced in 2019, researchers had only found bone fragments of the species at several locations in Ethiopia and Kenya.
More than 3.5 million years of ancient human fossils are extremely rare, and the discovery is unique in that it challenges the previous scientific hypothesis that the southern ape is a direct ancestor of the Southern ancient ape Afa species, and that the previously famous “Lucy” ancient ape fossils belong to the Southern ancient ape Afa species, based on this latest discovery, scientists confirm that the two species appeared at the same time in the history of human evolution.
4. The history of human manufacturing tools is longer
Modern human science and technology is very developed, people have advanced computers, convenient smartphones, and can play machines for leisure time, but millions of years ago our human ancestors can only use stone tools.
We have long thought that human ancestors began making these tools as early as 2.6 million years ago, but a new study in 2015 refuted that view, and archaeologists found some stone with signs of artificial modification in the Lomekwi region of Kenya, which has been confirmed by in-depth analysis as the oldest stone tool ever discovered, larger and simpler than previously discovered, dating back 3.3 million years.
The latest findings suggest that humans know how to spin off stone-making tools 700,000 years before they live in regular groups.
5, Homo sapiens appear edified 100,000 years in advance
Stone tools aren’t the only ones we expected, and in 2017, a team of scientists discovered the mystery of Homo sapiens, collecting some early human skulls, sediments and fossils that would identify the skull’s owner and life time. To their surprise, the remains date back 300,000 years, meaning they are 100,000 years ahead of the earliest Homo sapiens previously discovered. Archaeologists say the discovery could solve the mystery of human evolution on the African continent.
6. Social trade behavior is not new
In 2018, scientists discovered that social trade was practiced in early humans 300,000 years ago, using obsidian, which is sharp and sold at a higher price. After digging through stone tools in southern Kenya, scientists found that the chemical composition of the stone tools was very close to the source of obsidian 55 miles away. The findings show how early humans socialized with more groups.
7. Humans left Africa sooner than previously thought
Scientists have long known that early humans migrated from Africa to other continents more than once, at least twice, but they did not know that humans migrated from Africa earlier. Scientists previously thought Homo erectus migrated from Africa to eastern Asia 1.7 million years ago to present-day eastern Asia, but in 2018, scientists determined that the stone tools and fossils found in China dated about 2.1 million years ago, pushing the time for homoerecteanmigration to Asia by 400,000 years.