Signs of extreme fear in a cat include exploding hair, laying the body on the ground, hunching over, having airplane ears, baring teeth, widening eyes, raising its tail, extending its claws, growling in a low voice, etc. If a cat shows any of these symptoms, it means it is afraid. At this time, it is best not to touch it or hold it, otherwise it will be easily scratched or bitten by the cat, and the cat's fear must be eliminated in time to avoid stress reactions.