You've probably heard recorded cougar screams, the blood-curdling threats of a cat determined to vanquish all competitors or warn intruders away. This is different. Mac isn't trying to terrify anyone; he just knows it's time for breakfast, and like any cat, he's going to let you know that he doesn't like to wait. The sounds coming out remind me of a person trying to imitate a cat. Mac lives at Big Cat Rescue in Florida.