{"slug":"","question":"What's the scientific name for the grimacing behavior cats display when detecting chemicals through the vomeronasal organ?","topic":"BEHAVIORAL ECOLOGY","answer_a":"Flehmen response","answer_b":"Stalking reflex","answer_c":"Jacobson crouch","answer_d":"Retromorphic curl","correct_index":0,"fact":"The flehmen response — that characteristic lip curl and open-mouth grimace — lets cats funnel scent molecules to the vomeronasal (Jacobson's) organ in the roof of the mouth. It's especially used to detect pheromones in urine markings."}