Why do cats knead and purr? - briefly
Cats knead to express comfort and mark territory with scent glands in their paws, while purring is a sign of contentment, self-soothing, or communication.
Why do cats knead and purr? - in detail
Cats knead and purr as behaviors deeply rooted in their instincts, biology, and emotional states. Kneading, the rhythmic pressing of paws against soft surfaces, originates from kittenhood. When nursing, kittens knead their mother’s belly to stimulate milk flow. This comforting action often carries into adulthood, where it becomes a sign of contentment, relaxation, or affection. Kneading may also serve as a way for cats to mark their territory, as their paws contain scent glands that leave their unique signature on surfaces. Additionally, the motion can help cats stretch their muscles and prepare a comfortable resting spot, harking back to their wild ancestors who would flatten grass or leaves for a cozy bed.
Purring, on the other hand, is a complex vocalization produced by the rapid vibration of the laryngeal muscles during both inhalation and exhalation. While purring is commonly associated with happiness and comfort, it serves multiple purposes beyond expressing contentment. Cats may purr when they are anxious, in pain, or even during the process of healing, as the frequency of purring vibrations has been linked to promoting bone density and tissue repair. Mother cats purr to soothe their kittens, and kittens purr to communicate with their mother, creating a bond and sense of security. In some cases, purring can also be a form of self-soothing, helping cats calm themselves in stressful situations. Together, kneading and purring reflect the multifaceted nature of feline behavior, blending instinctual actions with emotional expression.