The first multicellular organisms appeared on Earth more than 650 years ago.
Scientists have learned how the first animals on Earth. The mystery of the origin of animal life on our planet suffered the paleontologists.
According to them, the first multicellular settled the Blue planet more than 650 years ago.
This was preceded by two key terms of science event: the occurrence of plankton and algae, as well as the congelation of the globe. About the incident, the scientists revealed the fat molecules, they discovered in the rocks of the ediacaran period. What happened 650 million years ago in the oceans specialist at the Australian National University in Canberra Jochen Broks called “revolt of the algae” or an “environmental revolution”.
The scientific community today believe that life originated on this planet for at least three billion years ago, but the first two and a half billion it existed at the unicellular level. The first multicellular organisms belong to the period 600-650 million years ago. Rather hard to say, as a paleontologist point to the lack of remains. To comprehend the mystery of the origin of multicellular life scientists to begin to understand how was created the “base” of the food chain – single-celled algae, which are called the main “lungs” of the planet.
The catch is that these organisms live on the Earth longer than two billion years, but it is still unclear what influenced that part of the algae during the Archean became the ancestors of modern plankton. Exploring the ediacaran rocks of ages 660 years, Australian scientists have discovered a large number of fat molecules present in animal cells but not in the body of microbes and cyanobacteria and archaea. This has helped scientists to answer the question of why bacteria have gradually started to lose ground and give way to multicellular structures – they simply lacked nutrients.
After the planet started to thaw, the oceans got a large amount of phosphorus and other nutrients, which stimulated the development of plankton, starting the reaction that organisms were able to maintain using internal resources. It made photosynthetic microorganisms to capitulate. Burks and his team are confident that this surge of energy provided the evolution of complex ecosystems.
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