why do cats do the crab walk

Ella

I’ve noticed my cat suddenly arching its back, puffing up its tail, and sidestepping like a crab, often during play or when startled. It looks hilarious, but I’m curious—why do cats do this? Is it a defensive tactic, a playful gesture, or something else?

Jessica

The "crab walk" is a mix of playfulness and instinct. Cats puff up and sidestep to appear larger when they feel threatened, but it’s also a way to engage in mock combat during play. It’s their version of a dramatic performance, combining defense and fun.

Amelia

This behavior stems from kittenhood. Young cats practice exaggerated movements to develop coordination and hunting skills. Adult cats retain the habit, using it to test boundaries or signal they’re in a playful mood—not aggressive.

Gabriel

My cat does this when she sees her reflection. Is she trying to fight herself?

Jackson

Gabriel Likely! Cats often perceive reflections as intruders. The crab walk is her way of sizing up the "other cat" while staying safe—it’s more bluff than actual aggression.