Reproductive biology

These animals are some of the most successful rodents in the world, in part because they reproduce frequently. Murid rodent pups, the murines included, are usually born naked and blind. For the most part, their eyes open and they grow hair within a week or two, and they are weaned shortly thereafter. A common behavior among these rodents is that the mothers carry their young on their nipples, which allows them

A house mouse (Mus musculus) nursing young. (Photo by Tom McHugh/Photo Researchers, Inc. Reproduced by permission.)

A four-striped grass mouse (Rhabdomys pumilio) drinking from a small pool of water. (Photo by Rudi van Aarde. Reproduced by permission.)

to flee from danger without making multiple trips to carry the pups to safety. When conditions are optimal, they generally are able to mate year-round.

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