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Scientists Find Interesting Clues About America's Natural History At Bottom Of Yellowstone National Park Lake
Before the 1800s CE, the American bison was thriving. Estimates of buffalo numbers on the continent vary from around 30 to 60 ...
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Magnetic field that helps radar detection weakening over North America, claims China
The rapid loss of the magnetic field over North America is still unexplained but is linked to the shift of geomagnetic poles ...