Why can't rats be eradicated completely?

This article focuses on the question of "why mice are so hard to eradicate", and introduces the reasons why mice are difficult to eliminate due to their sensitive senses, reliance on caves for protection, cautious nature, and extremely high reproductive rates. At the same time, it provides methods for families to drive away mice by storing food properly, cleaning up, and destroying the living environment suitable for mice.

Why can't rats be eradicated completely?

Mice not only steal grain and spread diseases, but occasionally also bite people, which is why people say "everyone wants to get rid of mice when they see them on the street". However, after thousands of years, despite people trying every means, the mouse population is still "thriving". How can these creatures never be completely eradicated?

Undoubtedly, mice are one of the most resilient species on Earth, with the most common ones being rats and mice. Although house mice are somewhat nearsighted and colorblind, it's a bit exaggerated to say they are "short-sighted". Moreover, their hearing, sense of smell, and sense of taste are quite excellent. They can not only hear ultrasound, taste poor-quality food, but even detect the slightest odor of food. In addition, relying on caves for protection and being timid and cautious, it's not easy to capture and kill them. More importantly, mice have extremely high reproductive rates. They have a short gestation period, give birth to many offspring, and reach sexual maturity early. Taking the black-line vole as an example, they can give birth to offspring in 21 days and mate again the day after giving birth. Young ones born in spring can join the breeding army in the fall. Therefore, if the work of rodent control is relaxed even a little, they will quickly make a comeback.

However, although it's difficult to eradicate mice in the wild, there are still ways to get rid of them in our own homes. The reason why mice move into our homes is because there are "habitable" environments for them. As long as we store grain properly, clean our homes thoroughly, and eliminate the conditions for mice to establish their homes, not only will the new mice find it uninteresting, but even the original mice will move away because they can't live there anymore.