The Hidden Timeline: When Was the Rise of Complex Multicellularity with Specialized Tissues?
The first whispers of life on Earth were solitary. For nearly 3 billion years, microorganisms ruled the planet—bacteria, archaea, and their kin, thriving in isolation. Then, around 700 million years ago, something extraordinary happened. Cells began to stick together, not just by chance, but by design. They formed colonies, then tissues, then entire organisms where … Read more
