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Mice and rats are both low maintenance, cute pets. However, they do have different needs and personalities. Choose a rat if you’re looking for a more social, active and clean pet. If you’re on a budget and want a pet that requires little to no handling, a mouse is your best bet.

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Choosing a Pet That Fits with Your Lifestyle

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  1. Both mice and rats are nocturnal animals and are therefore likely to be hiding and sleeping during the day. Keep this is mind before adopting because they often like to play and make noise at night; keep this in mind when considering adopting a pet rodent. [1]
  2. You can gently hold and stroke a pet mouse, or leave it to exercise in its cage. In contrast, rats need a bit more attention and will regularly need to be let out of their cage to play. [2] If you don't want this commitment, get a mouse instead.
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  3. How a rat or mouse cage might fit into your home could be an important factor to consider in deciding which animal to adopt. Rats require larger cages than mice due to their larger size. Both mice and rats should have cages where they can be viewed from the front rather than the top, so as to minimize stress.
    • Both rats and mice are social creatures and need to be housed with others of their kind. When choosing either rodent, you'll have to adopt at least two pets and pick your cage size accordingly. However, male mice should not be housed with other mice due to their aggressive nature. [3]
    • The minimum cage size for 2 adult rats is 1 metre (3.3 ft) x 60 centimetres (24 in) x 60 centimetres (24 in).
    • The minimum cage size for 2 mice is 60 centimetres (24 in) x 30 centimetres (12 in) x 25 centimetres (9.8 in).
  4. You will have to clean up after both pet mice and pet rats. However, overall rats tend to be cleaner than mice, particularly in terms of their smell and droppings. Pet rats can also be toilet trained whereas pet mice can't. [4] Rats are similar to cats in this sense, as they clean themselves.
    • While pet mice tend to be a bit smellier than pet rats, female mice are less smelly than their musky male counterparts. [5]
    • Both rats and mice tend to urinate and defecate in a corner of their cage. You will need to clean this daily and replace the soiled litter.
    • Rat cages need to be washed and/or disinfected once a week. [6]
    • Mice cages need to be washed and disinfected every 3-4 weeks. Be careful not to disturb their cage unless absolutely necessary, as this can stress them out.
    • If a rat looks dirty or scruffy, it's probably sick. It's not normal, as they spend a lot of time cleaning themselves.
  5. Both rats and mice are good pets for those on a budget. However, rats tend to be a bit more expensive as they require larger cages and considerably more food.
  6. Rats tend to live slightly longer than mice. If you'd like less of a responsibility in terms of how long your pet will live for, mice could be a good option for you.
    • Rats live for 3-4 years. Mice, on the other hand, live for 2-3 years.
    • Both rats and mice are a commitment and need to be engaged with and attended to for the duration of their lives.
    • You will probably become attached to the rat or mouse, and you need to take that short lifespan in consideration, as it won't be easy to say goodbye to your pet friend.
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Choosing a Pet You'll Enjoy

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  1. Rats are a great choice if you prefer a curious and intelligent animal that enjoys human stimulation and companionship. They love to be held and can even be toilet trained and learn basic tricks. [7]
    • Rats should have an area outside of their cage where they can play regularly. This is especially stimulating for your pet if the space is filled with various toys - and can be quite entertaining for you!
    EXPERT TIP

    Brian Starr

    Rat Specialist & Breeder
    Brian Starr is a Rat Specialist and Breeder and the Owner of OC Dumbos out of Central Florida. As America’s only breeder of pet Roof Rats, Brian and OC Dumbos specialize in rat breeding, training, and care. Years of experience and several generations of careful breeding have allowed Brian and OC Dumbos to create a line of tame Roof Rats, bred to make friendly, fun pets. In addition to offering rat accessories and training resources, OC Dumbos also offers free Roof Rat adoptions.
    Brian Starr
    Rat Specialist & Breeder

    Roof rats make lively pocket pets. Lithe roof rats have key differences from stockier Norway rats, like slighter builds for climbing, longer tails and limbs, different social temperaments, and adaptations to tropical heat. These factors make them an appealing pocket pet choice, if owners can nurture their needs.

  2. Mice are decidedly more independent than rats. They require less handling and attention and are a good option if you prefer watching your animals to playing with them.
    • Although mice don't enjoy the human touch as much as rats, they still need to be handled daily so as to keep them tame and check on their health.
    • If you like watching your mouse play you can include ladders, ropes and wheels in their cage, or even buy a multi-story cage to allow for sufficient exercise.This is fun for you and also good for your mouse.
  3. Pet mice are really small, fragile and often a bit skittish. Because of this they can be a difficult pet to own if you have children, as they don’t respond as well as rats to human touch, making them more likely to bite. A pet rat is hardier and may also be more stimulating for children.
    • Remember that you should socialize your pets gradually. Since they're prey animals, you're big and scary for them. You need to be aware that you're frightening and you first need to make the rat feel at ease, especially if it's a baby one.
  4. Rats are better able than mice to make friends with other family pets and these relationships can be really enjoyable to watch. Mice are a bit too fragile for this and are usually seen as a snack - especially for cats! [8]
    • Rats are known to pair particularly well with dogs and cats. [9]
    • Rats should always be supervised when socialising with other family pets - just to be safe.
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Community Q&A

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  • Question
    I'm very confused; different websites say different things about rats. Some say to clean a rat's cage once a month, other say once a week. I don't know if I should get a rat until I know the truth. Any advice?
    Community Answer
    As with other rodent pets, you should clean a rat's cage once a week to keep the smell down and prevent bacteria and other unpleasantness from forming.
  • Question
    I had a gerbil (he died), and he always bit me. Other than that he was great. Will a rat bite like that?
    Community Answer
    Any rodent might bite, depending on its personality and how it is socialized. It's important to tame them properly and gradually over time. If you decide to get a rat, check out the article on How to Tame a Rat for tips.
  • Question
    My mom hates mice. Should I get a rat?
    Community Answer
    If she is okay with rats, then sure. It's important that all members of the family like the pet that you're choosing. However, be sure to get 2, as rats need company.
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      Warnings

      • Don’t ever keep rats and mice in the same cage - they are not friends and may end up injuring and even killing each other.
      • Don't house male mice with any other mice, they will fight - this may lead to injury or death
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      About This Article

      Article Summary X

      Rats and mice can both make great pets, but if you’re torn between the 2, there are a few considerations to help you choose. Mice are generally more independent and don’t need to be played with as often as rats, but rats tend to be more affectionate. If you’re pressed for space, you might want to go with a mouse, since they don’t need as large a cage as rats do. Mice also tend to be cheaper than rats, since they need smaller cages and less food. On the other hand, rats are generally cleaner and can be toilet trained. They also get along better with cats and dogs, so you might want to choose a rat if you have other pets. If you have children, a rat is probably a better option, since they’re more playful and less likely to bite. For more tips, including how to choose between rats and mice based on their lifespan, read on!

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