Shredded paper, wood shavings, and processed corn cob are preferred bedding materials. We do not like cedar bedding for several reasons. It masks odors, giving a false sense of security that the cage is clean. As a result, the environment will become toxic and contaminated with bacteria. During their active period, hamsters eat and exercise.
Hamsters seem to especially enjoy exercise wheels and other activities.
Hamsters seem to really enjoy running through them. They also enjoy tin cans opened at both ends and boxes with multiple openings through which they can crawl. Pet hamsters are usually housed singly. Sexually mature females must not be housed together because of their inevitable aggressive- ness toward each other. Breeding females are larger than males and tend to be aggressive toward them.