* All animals have a scent. Even if we can't smell it, they have a natural odor.
* Many animals scratch. It's a natural behavior for grooming, getting rid of parasites, or relieving itchiness.
So, technically, there's no animal that *completely* lacks smell and scratching behavior.
However, some animals have very faint scents, and some have specialized scratching methods:
* Some aquatic animals, like fish and jellyfish, have very weak scents. Their lives are so different from land animals that they don't need strong smells for communication or defense.
* Birds can preen and dust bathe instead of scratching. They use their beaks to clean and remove parasites from their feathers.
Ultimately, it's impossible to find an animal that *completely* lacks smell and scratching behavior. It's part of their natural existence!