A new study published in the journal Nature recently found that modern humans evolved from at least two places in Africa.
Research conducted by researchers from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany and Eleanor Scerri states that there are “There is no single birthplace in Africa and human evolution is a process with very deep African roots”
According to a study, our species originated in Africa about 300,000 to 100,000 years ago “Fossils such as from Jebel Irhoud in Morocco, Herto in Ethiopia and the Klasies River in South Africa show anatomical features derived from Homo sapiens that were found across the continent 300-100 thousand years ago.”
The scarcity of available fossils of Homo sapiens from an early stage of evolution has made it difficult to figure out how our species emerged and spread across Africa before migrating to other parts of the world. into a challenge.
Research says that “It is unclear whether these fossils and archaeological sites represent the population that contributed to modern H. sapiens as a population precedent or a local ‘dead end'”
What did the research reveal?
The study was carried out on the genomes of 290 people living from four geographically and genetically different African groups.
According to the report “This study includes genome sequencing data from extant populations of East and West Africa and the Nama people of southern Africa. This increase in genomic data has helped researchers understand and track the historical movement of genes across generations.”
“We really wanted to sit down and systematically evaluate the models in a more innovative way,” Hen said. “It’s a new model of human evolution specifically.”
“We used a new algorithm to quickly test hundreds of possible scenarios,” said Simon Gravel, co-author of the paper and an associate professor in the Department of Human Genetics at McGill University. , the report goes on to supplement his statement, which reads: “that the algorithm was originally written to understand genetic disease risk and how it varies across populations, and it has led us to delve into human origins.”
The study presents data as two populations called Stem1 and Stem2. The first population, called Stem1, lived in Africa for hundreds of thousands of years. About 600,000 years ago, a small group of people from Stem1 became Neanderthals.
Another population, called Stem2, continues to live in Africa. The Stem2 humans eventually evolved into modern humans.
A report from the journal Nature reads “Ultimately, many questions remain about human origins. Henn wants to add more DNA from other African regions to the models to see if that changes their results. also hope to be able to use the data to predict the fossil record, such as features that can be found in human fossils from a particular region.”
Source: The Nature
A report from the journal Nature reads “Ultimately, many questions remain about human origins. Henn wants to add more DNA from other African regions to the models to see if that changes their results. also hope to be able to use the data to predict the fossil record, such as features that can be found in human fossils from a particular region.”
Categories: Trends
Source: vcmp.edu.vn