• Noun: a living organism characterized by voluntary movement
• Adj: marked by the appetites and passions of the body; examples: "animal instincts", "carnal knowledge", "fleshly desire", "a sensual delight in eating", "music is the only sensual pleasure without vice"
• Adj: of the nature of or characteristic of or derived from an animal or animals; examples: "the animal kingdom", "animal instincts", "animal fats"
Being asked what animal you'd like to be is a trick question; you're already an animal.