An interesting paper in the Journal of Geology claims that Supernovae bombarded the earth with energy, peaking 2.6 million years ago. This, they say, created a huge surge in lighting strikes and resulting global fires turned forests into grasslands.
Specifically, in the savannas in northeast Africa, they believe our ancient ancestors learned to walk upright to adapt to the new environment, for example, to be able to see what was around better in the tall grass, since there were not as many trees to climb… due to the supernova.
Did ancient supernovae induce proto-humans to walk on two legs, eventually resulting in Homo sapiens with hands free to build cathedrals, design rockets and snap iPhone selfies?
A paper published today in the Journal of Geology makes the case: Supernovae bombarded Earth with cosmic energy starting as many as 8 million years ago, with a peak some 2.6 million years ago, initiating an avalanche of electrons in the lower atmosphere and setting off a chain of events that feasibly ended with bipedal hominins such as Homo habilis, dubbed “handy man.”
The authors believe atmospheric ionization probably triggered an enormous upsurge in cloud-to-ground lightning strikes that ignited forest fires around the globe. These infernos could be one reason ancestors of Homo sapiens developed bipedalism — to adapt in savannas that replaced torched forests in northeast Africa.
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This strange ancient cause and effect seems logical and possible. What do you think?