Scientists Discover Molecular Link Between Homo Erectus and Modern Humans
Researchers have successfully extracted ancient proteins from six Homo erectus teeth found in China, revealing a molecular connection between this prehistoric species and later human species, including Homo sapiens. This study, published in the journal Nature, marks a significant advancement in understanding human evolution. The teeth, dating back approximately 400,000 years, were unearthed at three sites in China: Zhoukoudian, Hexian, and Sunjiadong. The research team, led by Chinese geneticist Fu Qiaomei, utilized a new, less invasive technique to analyze the enamel proteins, which are more robust than ancient DNA. This method allowed them to identify two amino acid variants shared among the specimens, one of which was previously unknown. The findings suggest that Homo erectus may have interbred with Denisovans, another ancient human species, and through them, contributed genetically to modern humans. 
