I'm been monitoring the chewing of the rawhide bones. Punch has turned primal over it. I have to finesse it away from her to inspect her progress and trim away any parts that are protruding from the bone. I'm still concerned about the possible dangers of rawhide. I have been concerned about the rawhide swelling in their stomachs/intestines. I just read one article (among many) that really makes me think that I won't let them chew them any longer: http://www.daneangelnetwork.org/rawhide.htm The chemicals that are used to make rawhide sound pretty harsh.