Monday, January 6, 2020

Over-hunting walruses contributed to the collapse of Norse Greenland, study suggests

Norse Greenlanders may have chased dwindling walrus herds ever farther north in an effort to maintain their economy, when the value of walrus ivory tanked after the introduction of elephant tusks into European markets in the 1200s.

from Latest Science News -- ScienceDaily https://ift.tt/2sRk5kz
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