Is it normal for a Panther Chameleon to become more aggressive during a shed. My Panther is about 6 months old, and I've had him for 2 months. This is the 3rd shed I've seen. I was cleaning out his cage, and feeding him, and I noticed that he started puffing up and opening his mouth. When I got near him, he snapped at me. Normally he tolerates me handling him pretty well. Is this normal behavior? Thanks.