Why Do Cats Vibrate Their Tails? Reading Your Cat's Body Language Kinship A cat's tail is a powerful form of communication that reveals its emotions and intentions. When the tail is erect and twitching, the cat is usually excited or happy, while a straight up Why is my cat's tail vibrating: Understanding the Behavior Desk Cat Nest A Guide to What Your Cat is Communicating: A cat's tail is far more than just a balance toolit is a sophisticated emotional barometer that broadcasts their internal world. When your feline Cat Tails What's That All About? What Does it Mean When a Cat Wags Their Tail? Guide to Cat Tail Language Kinship