Which animal has a best sense of smell between moth and cat?

The moth has a much better sense of smell than a cat.

Here's why:

* Moths rely heavily on smell for survival: Moths use their sense of smell to find food, mates, and avoid predators. Their antennae are covered in sensory receptors that detect pheromones and other scents from miles away.

* Cat's sense of smell is strong, but not as powerful: Cats have a strong sense of smell, about 14 times stronger than humans. They use it for hunting, communication, and identifying territory. However, it's not as sensitive as a moth's.

In conclusion: While a cat's sense of smell is impressive, it pales in comparison to the extraordinary olfactory abilities of a moth.