Science & Technology

The origin of modern humans cannot be traced to any single point in time or space

Homo sapiens Today, it looks very different from the origin of our evolution. Microorganisms move in the pristine mud. However, based on current evidence, our emergence as a separate species cannot be decisively traced to a single place at any single point in time.

In fact, such an era may never have happened, according to a team of scientists who have thoroughly reviewed our current understanding of human ancestry.Instead, the earliest known appearance of Homo sapiens Characteristics and behavior are consistent with the scope of evolutionary history.

There are simply no fossil records large enough to decisively control the particular time and place where modern humans emerge.

“Some of our ancestors lived in groups or groups that can be identified by fossil records, but little is known about others.” Anthropologist Chris Stringer said Of the Natural History Museum in London, England.

“In the next decade, growing awareness of our complex origins has focused the geographic focus of paleoanthropological fieldwork on formerly around our evolution, including Central Africa, West Africa, the Indian subcontinent, and Southeast Asia. It should expand to areas that were thought to be. “

We have some general ideas about our history. Homo sapiens Branched from an archaic ancestor sometime (by that time) a million to 300,000 years ago 9 different human species Lived on the planet).

And we know that modern human ancestors diversified in Africa 300,000 to 60,000 years ago.

Finally, between 60,000 and 40,000 years ago, these modern people migrated from Africa to the world. Mating between Neanderthals and Denisovans Before those two species finally die.

Based on current evidence, including genomic data and fossil records, researchers argue that it is not possible to pinpoint a more accurate location and time in Africa for modern human diversification.

“Contrary to what many believe, neither genetic nor fossil records have so far revealed a defined time and place for the origin of our species.” Geneticist Pontos Scogrand explained Of the Francis Crick Institute in the United Kingdom.

“Most of our ancestors were found in small geographic areas, and there may not have been such a time when traits associated with our species appeared. So far, we’re away from the idea. It would be useful to have a single time and place of origin. “

Instead, researchers emphasize the importance of trying to separate the appearance of related anatomy, physiology, traits, and behavior. Homo sapiens From hereditary ancestors. This helps to distinguish between the question of when human ancestors emerged and the question of when human behavior emerged.

They point out that the integration of the two risks oversimplifying what was likely to have been a long, continuous and complex process.

“Following this, the main new question is about which mechanism promoted and maintained this human patchwork over time and space, along with threads of all its diverse ancestors.” Archaeologist Eleanor Scerri said Max Planck Institute for Human History Science, Germany

“Understanding the relationship between destroyed habitats and changing human niches has undoubtedly played an important role in answering these questions, and which demographic patterns are genetic and paleoanthropological records. Reveal the best fit for. “

The study is published at Nature..

The origin of modern humans cannot be traced to any single point in time or space

http://feedproxy.google.com/~r/sciencealert-latestnews/~3/3xmp4NnODM4/the-origin-of-modern-humans-cannot-be-traced-to-any-one-single-point The origin of modern humans cannot be traced to any single point in time or space

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