The feline approaches its prey. Slowly at first, then crescendoing to a pounce that lands near, but not on the unmoving target. The cat bats an investigatory paw, then claws its target and yanks it faceward. But the cat does not bare its fangs; it does not bite. It closes its eyes and rubs the prey—a sock flecked with bits of dried herb—across its whiskers, then falls to the ground, its body humming with purrs that oscillate into soft meows.