"The Dawn of Life"

"The Dawn of Life" refers to the period when life first appeared on Earth around 3.5 to 4 billion years ago. During this time, simple organisms like bacteria and archaea emerged from non-living chemical compounds through processes such as chemical reactions in the oceans. These early life forms lacked complex structures but laid the foundation for biological diversity. Over time, they evolved into more complex organisms. Understanding this era helps scientists learn how life began and how the earliest organisms adapted to Earth’s environment, marking the beginning of biological history.