Fossils discovered in China significantly push back the evolutionary history of complex life. Scientists indicate that these fossils, which identify primitive complex organisms that lived long before the Cambrian period, could change the current understanding of the development process of life. In the study published in the journal Science on April 2, researchers state that these fossils date back millions of years and represent a critical period in the evolution of complex life. These findings provide a new perspective on scientific discussions about the origin and evolution of life.