First moving organisms arose 2.1 billion years ago

Scientists have found the earliest evidence for a revolutionary development in the history of life on Earth in 2.1 billion-year-old black clay sage from a quarry in Gabon, the ability of an organism to move independently from one place to another.


Scientists have found the earliest evidence for a revolutionary development in the history of life on Earth in 2.1 billion-year-old black clay sage from a quarry in Gabon, the ability of an organism to move independently from one place to another.

In their publication, the researchers described well-preserved fossils of thin tubular structures up to seventeen centimeters long, which originated because unknown organisms went in search of food in the soft mud. This happened in a calm and shallow sea ecosystem.

The petrified tubes date from a time when the earth was oxygen-rich and had conditions conducive to simple cellular life in order to gain more complexity.

Marine life appeared on earth some four billion years ago in the form of single-cell bacterial organisms. But the earliest types did not have the ability to move themselves. The fossils from Gabon are about one and a half billion years older than the independently moving forms known so far.

How the first independently moving organisms have looked exactly is not yet known. That can not be deduced from the remains of the corridors.

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REF: https://www.nu.nl/wetenschap/5737389/eerste-bewegende-organismes-ontstonden-21-miljard-jaar-geleden.html

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