The other day my borther and i decided to let my gerbils out of their cage. We started with a little circle we fashioned out of different things, but then they started getting out and so we just let them run around my room. It's really fun and they don't leave any messes or get into any trouble. We've done this like 3 or 4 times now i guess. But everytime we corral them up and put them back in their cage, they start biting the bars. Is this ok? It's really sad, and i hate putting them in their cage after they've just had the run of my room. They've never tried to bite the bars until we started doing this. Can it hurt their teeth? I don't think they can actually escape.
BTW - their cage is a wire cage with with 4 levels, and they have tons of stuff to chew on in there.
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