Trying to answer the issue of how many mice are born in an average litter of house mice is a difficult task. Is there a way to explain how a single pair of intruders can quickly grow into an infestation? Make sure to check out our control solutions below if you’re dealing with an infestation. Let’s take a look at a few of the numbers. Warning: Don’t be surprised if you’re a little overwhelmed by the math!
When Do Animals Begin to Mating?
First, you need two mice, one male and one female. Females may be able to conceive as early as four weeks, but ovulation normally begins between six and eight weeks.
The gestation phase normally lasts around three weeks after a successful partner is found. Mothers often give birth to five to seven pups, although it is possible for the mother to give birth to double that number.
How Long Do Mice Live?
The average lifespan of a mouse is about 12 months in the outdoors. But when they take refuge in your house, they can live up to 2 or even 3 years. You may be thinking that you can wait for the mouse to die on its own but what about its babies and the babies of their babies? The rate at which these breeding machines multiply is almost unbelievable. In the wild, they are an important part of the food chain. Many large birds feed on them to sustain their existence, just like mice feed on insects to sustain theirs. In a way, they are maintaining balance, but inside your home, they are only bringing disease and destruction so if you are in the Houston area and need our services make sure tocontact us online or give us a call today.
What Could Be the Reason for the Low Numbers?
There are many environmental forces that work against an animal’s vulnerable young, which is why nature dictates that animals have big litters. There are few who can survive without adequate shelter or food, and even mothers may resort to eating their own children in difficult situations. There are two reasons why a mother mouse could eat her own babies according to University of Oklahoma professor Douglas W. Mock, author of More than Kin and Less than Kind:
- It’s common for mothers to choose those children that have the highest chance of surviving over those that aren’t, so that there isn’t as much food competition.
- The mother’s ability to care for her pups and have another pregnancy is enhanced by the calories she obtains from eating her young.
It’s all about the survival of the species, not the survival of the individual, for mice and other animals in the animal kingdom. It is a matter of great importance to the men, who want to ensure that their genes are passed on to their children. To protect his own offspring, a male mouse will murder any of his female partner’s offspring that he believes to be his own.
He may not even have to wait until the baby mice are born before he mate! A newly pregnant female may abort her fetuses’ if she is separated from her partner and a new dominant male enters her area. Progesterone production decreases due to pheromones released by the male, which results in this pregnancy termination. This phenomenon, known as the Bruce Effect, isn’t just limited to mice; it also occurs in other animal species.
How the Numbers Keep Going Up and Up?
Despite the odds stacked against them at birth and infancy, there are always enough mice around to exacerbate any existing pest issue. Common house mice have a lifespan of approximately a year in the wild, but they may be able to live twice as long in the walls or foundation of your home. Additionally, it’s worth mentioning that in the outdoors, mice marry in the spring and fall, but indoors they do so all year long!
Just think about how many mice a pair of mice could produce. Depending on how long your initial two parent mice live, they may produce ten litters – around sixty mice – per year. Keep in mind that after six weeks of gestation, another litter of mice will be ready to reproduce. This shows how quickly a tiny mouse problem may turn into a major one, unless you’re reproducing them.