I don't know if I've ever tried to specify it in the 45+ years I've been a cat. Might've done when I was younger and forgot about it. But I definitely have feline instincts, even if my body isn't up to following them all that often nowadays. And sometimes my logical mind stops me, like the time when I had to stop myself from pouncing on a sheep skin drying on a low rectangular stool. Because biting wool is nails-on-blackboard horrible.