Associated Press: Woolly mammoths and other large ice age mammals thrived in northern Alaska until environmental changes turned grasslands into peat and rising sea levels submerged the Bering Land Bridge, cutting off their access to Asia, according to a research paper published Monday.
Researchers from the University of Alaska Fairbanks and the University of California studied bones of ice age horses, steppe bison, mammoths and other animals to determine why they died out in whats now Arctic Alaska.
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