Shapeshifting

Sometimes I roll around, I grow a tail, and I sense things that people don't sense. I have whiskers. Then I am fish or something and I gulp something down as I am also being gulped. I do it in response to some other stimulus in some other place. This is just what I do, what I've always done, in a rhythm, in a dance, in a balance. I wonder if the stimulus didn't occur if I would know to eat!