All the cat lovers enjoy it when a cat purrs. Why do they do it? Scientists think it is a kind of “homing device” used by a mother cat to help her newborn kittens (whose sight, hearing and sense of smell are all underdeveloped at that time) locate her when it’s time to nurse. Purring is a kind of “dinner bell” to young kittens. A mother cat purrs, the kittens fasten on, and the purring stops. No one can be sure, but it appears that from “kittenhood” on they associate purring with pleasure.Your contented cat may purr in your lap or lying near you, but you won’t hear (or feel) him purr as he/she lies contented in the sun. Purring is never a solitary act; cats only purr in the close proximity of a human or another cat. Cat experts think purring indicates not only contentment but also submission. That is, purring is the kitten’s signal to his mother and the adult cat’s signal to his owner that “I’m all yours.” No wonder cat lovers take such pleasure in it.
As you might have known, snakes don’t have external ears, so they cannot hear like we do. However, they have an inner ear that can feel vibrations on the ground and in the air. When the snake sways to a snake charmer’s instrument, it is actually reacting to the vibrations of the charmer’s movement, not to the sound the instrument is making. A sleeping snake might not wake up if you called it, but it would be sure to feel the vibration in the ground if you walked close by.Note: Do not walk close to snakes as they might feel threatened and attack.