Complex life on Earth began earlier than previously thought; this is known.

Complex life on Earth It is understood as the transition from simple, single-celled organisms to more complex microorganisms that later led to the emergence of animals and plants. It could have started 1.5 billion years earlier than previously thought.Analysis of fossil remains found in an underwater volcanic crater in Gabon also revealed.

His geochemical study, the findings of which were collected in the Journal of Precambrian Research, It indicates the presence of complex life forms on Earth 2.1 billion years ago, Compared to the 635 million years that science has so far determined for its beginning.

Dating transformation, This has been demonstrated by analysis of complex microorganisms found in large fossil rocks. (about 17 cm), Found in an underwater volcanic trench Near the city of Franceville (Gabon), on the Atlantic coast of central Africa.

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Its existence is the result, according to researchers, of a unique episode of underwater volcanic activity. This happened after two continents collided, resulting in an unusually rich supply of nutrients in that region.

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The collision of continents, It could have led to an increase in marine oxygen and phosphorus concentrations, the two “elements” optimal for the development of life.“Especially in the transition from simple single-celled organisms to complex ones such as animals and plants,” says one of the authors, Cardiff University Earth Sciences researcher Ernest Che Fro.

“We believe that the underwater volcanoes that followed the impact, This portion of the world’s ocean water is cut off to create a shallow, nutrient-rich inland sea.“The researcher says in a statement from Cardiff University.

“In that inland sea, an environment was created in which cyanobacterial photosynthesis was abundant for a long period of time.This oxygenated the local seawater and generated food resources to increase the size of primitive life.”

Two-stage development

Scientists Consider the “closed” nature of this body of water.In addition to the hostile conditions that existed outside the confines of this environment for billions of years after that, They prevented these mysterious life forms from spreading and gaining a foothold throughout the world.

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In that line, The study proposes that complex life on Earth evolved in two stages: The first episode that took place in this specific space. 2.1 billion years agoSecond, after increasing oxygen levels in the atmosphere, After about 1.5 billion years.

While the first attempt failed to spread, The second led to the emergence of the animal biodiversity that we know today.

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