Quote:
Originally Posted by HeatDeath
I just figured that they got by with very large ground contact patches, and having enough torque that if you had a strong enough cable and welded it to their treads, they could winch themselves vertically straight up and down like a yo-yo. :)
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Maybe it's like my first dive after winter holidays. They grab a few extra rocks on their way down to make up for the extra buoyancy.