Why Do Cats Like Catnip?
Cats are drawn to catnip because of a volatile oil found in the plant's leaves and stems called nepetalactone. When a cat encounters this compound, it binds…

Why do cats like catnip?
Cats are drawn to catnip because of a volatile oil found in the plant’s leaves and stems called nepetalactone. When a cat encounters this compound, it binds to receptors in the nose and stimulates sensory neurons, triggering a variety of behaviors that suggest a state of excitement or pleasure.12
Common reactions include rolling, rubbing, purring, drooling, jumping, and vocalizing. While the exact mechanism behind these reactions remains a subject of scientific study, the effects are typically short-lived, usually lasting about 10 minutes. Interestingly, sensitivity to catnip is an inherited trait, affecting approximately 70 percent of cats, including some big cats like leopards and tigers. Once the initial reaction subsides, cats typically become temporarily immune to the effects of the plant.12
Do big cats like lions and tigers react to catnip?
Yes, research indicates that big cats, such as tigers and leopards, can be affected by catnip in a manner similar to domestic cats.1
The reaction is triggered by nepetalactone, a volatile oil found in the plant’s leaves and stems. When this compound binds to receptors in a cat’s nose, it stimulates sensory neurons, often resulting in behaviors such as rolling, rubbing, purring, drooling, jumping, and vocalizing. While these effects are typically intense, they are usually short-lived, lasting about 10 minutes before the animal becomes temporarily immune to further exposure.12
Why are some cats immune to the effects of catnip?
The primary reason some cats do not react to catnip is that sensitivity to the plant is an inherited trait. While approximately 70 percent of cats experience a reaction to the volatile oil known as nepetalactone, the remaining 30 percent lack the genetic predisposition to respond to the compound.12
For those cats that are sensitive, the nepetalactone binds to receptors in the nose and stimulates sensory neurons, leading to behaviors such as rolling, rubbing, purring, or jumping. Because this response is determined by genetics, cats that do not possess the necessary biological sensitivity will remain unaffected regardless of their exposure to the plant.12
What is the evolutionary purpose of nepetalactone for the plant?
The evolutionary purpose of nepetalactone for the catnip plant is not explicitly detailed in the provided search results. While the compound is known to act as a potent attractant for various feline species, the specific biological or ecological advantage this provides to the plant—such as defense against herbivores or a mechanism for pollination—is not addressed in the available information.21
We could dive deeper into the general functions of volatile oils in plants or explore other botanical defense mechanisms if you are interested.
Sources
- Why do cats like catnip? — Encyclopædia Britannica
- Catnip — Encyclopædia Britannica
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