Ancient Life Evidence

Stromatolites, often referred to as "living rocks," are crucial to understanding the origins of life on Earth, dating back 3.5 billion years. These structures, primarily formed by cyanobacteria, provide the oldest direct evidence of life, revealing insights into the evolution from single-celled organisms to complex multicellular life. Their unique layered formations serve as a geological signature, allowing researchers to piece together the history of life long before the fossil record began.