Why do cats purr?

Answer: For comfort and healing

For comfort and healing ✓ — Correct! Cats purr for many reasons: comfort, healing, and self-soothing. The vibrations (25-150 Hz) may help heal bones and reduce pain. Mother cats purr to calm kittens, and injured cats purr to self-soothe. It's a multi-purpose comfort tool!

To mark their territory — Wrong. Purring has nothing to do with territory. Cats mark territory through scent glands, scratching, and urine—not through purring. Purring is about comfort and self-soothing.

Breathing through their nose — Wrong. Purring is not caused by breathing through the nose. It's produced by rapid vibration of muscles in the larynx (voice box), causing the vocal cords to vibrate as the cat breathes in and out.