On farms, in food processing plants and even just in homes, cats can provide the important function of keeping rodent populations under control.
A mouse can have eight babies. Assuming four of them are female, and knowing that a mouse can give birth 60 days after being born itself, after 18 months, a pair of mice can become 4.5 million.
If it weren’t for cats, perhaps we’d be overrun.
A mouser in Scotland killed 28,899 mice in her career.