Youtor
Neanderthals Went Extinct Due to UV Radiation
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=ui-klWgjXYQ
The Earth is shielded from harmful radiation from the sun and other cosmic sources by the magnetic field that surrounds it. But sometimes, that magnetic field can weaken and become unstable. This last occurred on Earth about 42,000 years ago, during the Laschamp Event. The environment underwent major changes, extinction events, and transformations in the archaeological record. Scientists speculate that one of those extinction episodes occurred around the time that the light-skinned Neanderthals vanished from the fossil record. Some academics contend that the red ochre utilized in European cave paintings 42,000 years ago, was also used as a natural sunscreen. Reduced ozone layers would have resulted in more Ionizing and UV radiation, both of which are harmful to living things. More galactic cosmic rays are directed at Earth during solar minimum, and evidence suggests that the Earth would have been subjected to some particularly harsh amounts of cosmic radiation. • https://www.iflscience.com/an-increas...
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