I was giggling at your comments kimlovescats- they are light on their feet- as long as Zubin can stop.. The pouncing noise you hear, is like a bluff- of trying to make selves 'sound bigger" or more " omp" to the pounce. When Zubin first started doing the 'polar bear bounce" ( like what a polar bear does to break up the ice), he actually scared himself. ( as he no clue he could make that much noise..)