Rabbits are naturally social animals and enjoy interacting with one another. However, while some rabbits do extremely well in groups, others do not. Spayed or neutered littermates do especially well together because they have been companions since birth. They make the best pairs to house together.
If you don't have a lot of time to spend with your rabbit, getting another companion may help prevent boredom and the development of bad habits such as fur chewing, pacing, and playing with the water bottle. Research has shown that rabbits housed together are less prone to infection and have better muscle quality because they tend to get more exercise.
On the other hand, some rabbits do not get along well. As with every living thing, each rabbit has a different personality that may or may not mesh well with another rabbit. You should be extremely careful when introducing new rabbits to avoid personality conflicts and potential injury to one or both rabbits.
