Scientists believe that 710 million years ago, and before there multicellular life, the whole world was under ice. Despite this global freezing, microscopic marine organisms adapt and survive.
In the past 150 years, the planet has experienced a rapid increase in global temperature produced by burning fossil fuels and emission of carbon dioxide into the atmosphere. But the Earth has suffered other global warming and cooling over its geological history, even long before humans evolved.
In at least one occasion, 710 million years ago, the weather turned so cold that the whole planet was covered with ice. And although there were no fish, no birds or mammals or amphibians or reptiles at this time, it had a variety of unicellular marine organisms.
Because of evolutionary pressures, not all organisms survived the bitter cold. What advantage certain bodies were taken to reproduce successfully and survive in a dark and icy ocean.
Researchers at the Massachusetts Institute of Technology (MIT), Harvard University and Smith College, under the leadership of the scientist Tanja Bosak, microscopic fossils recently discovered in certain unicellular organisms of the era of global freezing. They developed the ability to find bits of sand, aluminum, potassium and other minerals and paste to create a protective cover.
The scientists also noted that the improvised armor had a hole through which agencies paws drew to catch food and move around, much like the shells that create actual microscopic organisms, like amoebas order Arcelin, gender Diflugia.
This finding is important because it is the first evidence of biological agglutination, i.e., that a soft body learns to create protective shells made of granite in the ocean.
The fact that they found fossils of 710 million years in places as far away as Namibia and Mongolia is evidence that various types of bodies evolved both the same protective solution.