Suppose that the earth were a smooth sphere and you could wrap a 25,000-mile-long band snugly around it. Now let us say that you lengthen the band by 10 feet, loosening it just a little. What would be the largest thing that could slither under the new band (assume that it is now raised above the earthʼs surface equally all the way around so that it doesnʼt touch anywhere): an amoeba, a snake, or an alligator?
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