A recent discovery by an international team of scientists has revealed that complex life on Earth may have existed hundreds of millions of years earlier than previously thought. The team has identified microfossils that date back 3.2 billion years ago, making them the oldest complex life forms ever discovered. These microfossils, which are believed to be related to modern-day single-celled bacteria, could help rewrite the history of how life on Earth evolved.

Scientists have long believed that complex life on Earth didn’t appear until around 2.1 billion years ago, but the discovery of these microfossils indicates that it may have been around much earlier. The microfossils, which are formed by the remains of single-celled organisms, are incredibly small and were discovered in South African rocks. The team’s findings, which were recently published in the journal Nature Communications, suggest that complex life had already evolved by 3.2 billion years ago.

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source: Phys.org