Do dinosaurs have fer

If you are wondering whether they had fur, they didn't. Many types of theropods had primitive feathers, however, and some small ceratopsians had feather like bristles on their backs. If you want to know whether they had fear, I think it is safe to say they did when they were in danger. All vertebrate animals have a fight or flight response which is felt by the animal as fear and/or aggression. It is caused by stress hormones, which give the body a boost for surviving a life threatening situation.