A Moment of Science
About twenty thousand years ago, during the last major ice age, a miles-thick ice sheet covered all of Canada and most of the northeastern United States.
Some plants have parasitic behavior that destroys their plant hosts, but are there benefits too?
Over a hundred quakes have happened in the last decade. But they didn't occur near fault lines. What were they near? Find out on this Moment of Science.
What's the deal with Mona Lisa's smile? Find out on this Moment of Science.
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