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How many young are usually born in a house mouse litter?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
Illustration of a house mouse, Mus musculus, showing a small, brownish-gray rodent with large ears, a pointed nose, and a long tail. A scale above indicates its length is about 10 centimeters or 4 inches.
mouse

For a house mouse (Mus musculus), a litter typically consists of 5 or 6 young, although litters of up to 12 are sometimes produced.1