Fossils show life on Earth four billion years ago

An international team of scientists has discovered what they say appear to be fossils of bacteria from nearly four billion years ago. It's far earlier than organic life was thought to have evolved on Earth.

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    An international team of scientists has discovered what they say appear to be fossils of bacteria from nearly four billion years ago. It's far earlier than organic life was thought to have evolved on Earth. The discovery was made along a remote seashore in northeastern Canada. Al Jazeera's Daniel Lak reports.


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