Scientists at the Massachusetts Institute of Technology in the United States have shown that long before fire was used, primitive people cooked food in geothermal sources. The assumption is made based on the analysis of traces of the vital activity of the ancient inhabitants of the Earth.
Image via: wikipedia.org
A group of specialists investigated the Olduvai gorge, known for the fact that the remains of a person who was recognized as one of the most ancient representatives of humanity were found in it. There were various tools around. In the cave, experts also found lipids that usually live in water, and at high temperatures. Scientists have found the bacteria Thermocrinis rube, which does not grow in the environment if the water temperature does not reach 80 ° Celsius or higher. Scientists have suggested that in the named gorge there could be springs with very hot water.
This circumstance provided an opportunity for ancient people to use them as a tool for cooking. At the same time, there is no direct evidence that the distant ancestors of modern people massively used geothermal sources in those places where they were available.