Hamsters Biting Cage Bars. Helping Pet Lovers Since 1999 › Forums › Hamster Forums › Hamsters Biting Cage Bars. This topic contains 0 replies, has 1 voice, and was last updated by peppermint0407 6 years, 6 months ago. Viewing 1 post (of 1 total) Author Posts December 4 at 3:01 pm #74004 peppermint0407Participant I have three pet hamsters, all in different cages, and one always bites the cage bar while another one always climbs to the top of the cage. what’s happening? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.