Now let's imagine we're studying a population of 100 house mice. House mice, also known as Mus musculus , are the mice you are probably most familiar with. These small, furry creatures that live in many houses across the United States are also important study organisms for medicinal, biological, and genetic research. House mice are not native species to the United States. They were introduced from Eurasia, and now occupy not only the U.S., but also all other inhabited areas of the world.
House mice are tiny compared to elephants.
Again, assume that immigration and emigration are equal. Both of these can have an affect on population growth. But, for now, you are interested in watching growth of the population base on reproduction with unlimited resources. Let's find out . . . You need to know The average weight of a house mouse.