NHMFOS_190722_136
Existing comment:
Going, going, gone
Press the button and ponder why the mammoths became extinct.

Large mammals thrive in this lush landscape. Plentiful water fills rivers, ponds, and lakes. Plants grow in a rich tapestry of trees, shrubs, grasses, and herbs. The air is cool. Elsewhere, glaciers tie up ocean water, lowering global sea level.
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