Cat Behaviour Communication
They are used between a mother cat and her kittens. A mother cat protecting her kittens will fight off the largest dog. She gives good warning with a frightening display, hissing furiously, showing her claws, arching her back, and making her hair stand on end. If that fails, she attacks the dog's face with her claws. It has been said that no dog ever tries such an attack a second time. Man meets dog'.