What is the maximum size of an opening that rats can compress their body through?

Rats have incredibly flexible bodies that allow them to squeeze through very small openings. The maximum size of an opening that rats can typically compress their bodies through is around 1/2 inch in diameter. This capacity is due to the structure of their bones; many of their bones are not fused and can be manipulated under pressure, enabling them to fit through tight spaces in search of food, shelter, or escape from predators.

Understanding this ability is crucial for pest control, as it highlights the importance of sealing potential entry points in buildings and structures to prevent rat infestations. Keeping this in mind will help in assessing the vulnerabilities in infrastructure that can be exploited by rodents.