The Cambrian Explosion: How Life on Earth Suddenly Transformed When we think about the history of life, we often imagine a slow and steady climb from simple beginnings to the complex ecosystems we see today. But Earth’s past contains a moment of extraordinary acceleration—a time when life seemed to burst forth in dazzling diversity almost overnight. This event is known as the Cambrian Explosion, a biological revolution that reshaped our planet over 500 million years ago. A Sudden Flourish of Lif