Catio Benefits Keep Your Cats Safe Cats are constantly threatened by outdoor hazards like cars, predators and poisons. Dogs, and even other cats can be unfriendly, sadly. Keep Your Cats Stimulated As if the sights, sounds, and smells outside aren’t enough, bird-watching and ramp or pole climbing keep your cat engaged and healthfully active. Protect The Environment Catios protect birds and other small wildlife from Cats’ predatory instincts. Allow your cats to enjoy nature without endangering it.