What is the maximum size of an opening a house mouse can squeeze through?

House mice are remarkable climbers and can squeeze through surprisingly small openings. The maximum size of an opening a house mouse can fit through is approximately 1/4 inch. This ability is due to their flexible bodies and a lack of collarbone, allowing them to contort and flatten themselves to navigate through narrow spaces in search of food, shelter, and safety. Understanding this size is critical for pest control, as it highlights the importance of sealing even small gaps and cracks around a home to prevent these pests from entering. This knowledge is essential for effective pest management strategies, ensuring that all potential entry points are adequately addressed.