The world’s oldest rocks harbor enigmatic fossils of cells that seem to defy categorization within today’s biodiversity, sparking intrigue among scientists regarding their evolutionary origins. Recent experimental findings suggest that these ancient fossils may represent primitive cells that were unable to fully regulate their shape, indicating a potential link to the evolution of modern cellular structures.
These sedimentary rocks, dating back up to 3.8 billion years, continue to provide invaluable insights into the early development of life on Earth, offering compelling evidence for understanding the transition from simple cellular forms to complex organisms.