'Ghost' human ancestor discovered in West Africa
(www.bbc.com)
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Just look at the end of the last ice age. In a flash, (literally) mastodons were reduced to modern elephants, giant sloths, bears, beavers, sabretooths and others shrunk by 50% to 90%, and surviving humans came out of caves. Solar micro-nova and related earth magnetic excursion. How did such an ELE change DNA over night?