What physical feat related to tight spaces allows weasels, whose flexibility is perfect for hunting, to enter areas that seem inaccessible?
Answer
Slip through a space the size of a quarter of an inch
The weasel's extremely lean and flexible physique, vital for navigating underground prey burrows, grants it extraordinary access capabilities. They are physically capable of squeezing through remarkably small openings. The text specifies that their flexibility allows them to slip through gaps measuring as minuscule as one-quarter of an inch. This extreme physical dexterity makes excluding them from structures incredibly challenging, as any existing fissure or space presents an immediate invitation for entry if the weasel deems the location worthwhile to investigate.

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