What is the smallest opening a house mouse can squeeze through?

A house mouse is remarkably agile and has the ability to squeeze through surprisingly small openings. The smallest diameter through which a typical adult house mouse can fit is indeed around 1/4 inch. This size is critical information for pest management and prevention strategies, as it highlights how easily these rodents can enter homes and buildings. Understanding this aspect of mouse behavior is essential for implementing effective exclusion methods, such as sealing cracks and gaps in walls, doors, and foundations, to deter infestations.

The other answer choices reflect larger openings which do not accurately represent the capabilities of a house mouse. For instance, while smaller than 1/4 inch is possible, anything larger than this threshold is unnecessary for their entry into structures.