How long is the gestation period for rats?

The gestation period for rats is approximately 22 days, making this the correct choice. This relatively short gestation period allows for rapid population growth, which is a crucial aspect of their reproductive strategy. Female rats can become pregnant shortly after giving birth, enabling them to have multiple litters each year. Understanding this timeline is important for professionals in vector control, as it informs breeding cycles and helps in managing rodent populations effectively. This knowledge is essential for implementing effective control measures to minimize the risks associated with rodent infestations, which can impact public health and safety.