Mice and Rats

Although more popular as laboratory research animals, mice and rats are occasionally kept as pets. They are relatively easy to care for, and most have gentle dispositions, making them easy to handle. The mouse, Mus musculus, and the rat, Rattus norvegicus, originated from the Asian continent, but soon spread with man throughout the world. They are both nocturnal creatures, becoming most active during the twilight hours. However, some mice may choose to be quite active during the day as well. Both have hairless tails, a fact that helps differentiate the mouse from its rodent cousin, the gerbil. While most pet rats are pure white or white with black or brown “hoods,” pet mice can be found in a variety of colors, including white, black, brown, and tan. The captive life span for mice and rats is around 2 to 4 years.