Domestic rabbits (Oryctolagus cuniculus), much like the wild European rabbits they descend from, are highly social and often do best when living in at least a pair. In larger groups, it is possible that a more pronounced social hierarchy could be established, as suggested by anecdotes from a rabbit sanctuary. There are also some observational reports on laboratory-housed rabbits that showed that rabbits often seek out body contact with conspecifics when given the opportunity.
Fact and sketch contributed by Amanda Puitiza
[Edited by Adrian Perez]
DiVincenti Jr, L., & Rehrig, A. N. (2016). The social nature of European rabbits (Oryctolagus cuniculus). Journal of the American Association for Laboratory Animal Science, 55(6), 729-736.