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Learn more with hot topics, videos, animations, and interviews.
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Polar Fun

What is it? #7

Can you tell what the photo is? Click on the image to find out.

what is it? #6

What is it?
a. Tractor tire tread marks in snow
b. Melted impressions of ice auger sections
c. Ice worm holes

Try another:

what is it? First photo what is it? 2 what is it? 3 what is it? 4 what is it? 5 what is it? 6