Research overview: the function of rubbing and rolling on iridoid plants

When exposed to catnip or silver vine, cats characteristically rub their faces and bodies against the material and roll in it. This overview surveys the function of this rubbing and rolling, which research has linked to transferring the plant's iridoid compounds onto the cat's fur. Because those compounds repel mosquitoes, the anointing behavior may serve as chemical self-defense, spreading protective molecules across the coat. The survey relates the behavior to the discovery of nepetalactol and to the mosquito-repellent finding, reframing what looks like simple play as a possibly adaptive action. It discusses how the stereotyped movements maximize contact between the plant and the cat's skin and fur. Understanding the function of rubbing and rolling transforms a charming behavior into a meaningful one, suggesting that cats are not merely indulging in pleasure but actively applying a botanical insect repellent, with the reward system reinforcing a behavior that carries a genuine survival benefit.