What Was the First Complex Life on Earth?

The first complex life on Earth emerged during the Precambrian era, approximately 541 million years ago. This milestone was marked by the appearance of multicellular organisms, a remarkable evolutionary leap that signaled the transition from simple prokaryotic cells to more sophisticated eukaryotic cells. These early complex organisms, known as the Ediacara biota, flourished in diverse marine environments and exhibited a wide range of morphologies, including frond-like structures, quilted organisms, and disk-shaped creatures. The Ediacara biota represented a significant step forward in the evolution of life and laid the foundation for the diversification of complex life forms that would eventually dominate the planet.

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