In one of the SBCK meetings in southern cal, a member had a panther bite one of the branches seemingly out of stress/aggression. Several of the members observed and concurred that this can be quite harmful to the chameleon. One of the members said her panther had chronic mouth infections/injuries because of it.
Take note of the situation of the cage. Is it an an area with traffic? What stresses can be reduced or eliminated? Sometimes there is nothing that can be done...just thought I'd share the conversation we had in the meeting!
re-post from thread :
here